Recent content by sgkent

if life could be so simple. HP is a function of RPM and Torque. To make more HP the engine needs to spin faster, which is death on many of these small engines because they weren't designed for it. Likewise more torque means burning more air and fuel at the same RPM so higher compression and...

what opens and closes the points on that engine? Some engines might still use mechanical points but the could also have a capactive discharge system where the points merely turn an electronic ignition on and off. You still could have a coil with a system like that but the points don't carry a...

so I may have fixed the immediate issue. Pulled the spool and cover off. In the process of putting the new Oregon .080 line on I decided to see how the bump works. Poorly. But upon pressing it in and turning it manually it hits a stop. Then if one hits pushes down a little and turns (like when...

It gets harder to troubleshoot problems via the Internet as people get offended when those of us who are good with these things can't offer anything but generic help due to no one inventing an app that allows us to teleport to the scene of the problem. When we complain that we even viewed the...

you might look to see if someone like Compufire or Petronix has a module that will fit the distributor. I run points in an old VW and it is less troublesome than electronic ignitions. Some folks never have issues and others are breaking down constantly. The units can fry and are hard to...

these are $12 at HF. 17". They make longer ones too. Easy to rig something up behind the mower too, to pick up any other pieces in that are which might be hiding. Including the blade there are six or seven parts that go on that shaft, spacers and things like that. Be sure you have them all. 30...

Thanks Bert

lack of fuel or old fuel would be my guess. Maybe the choke is not closing properly

we get that in VW buses when the ground cable is bad from the frame to the engine etc.. The clutch cable acts as the ground strap, gets hot and stretches. Yep, that will do it.

try it with the spark plug(s) out to see if it spins.

HARD OF HEARING?

what I meant is that Dragonfly is a AU thing. Nothing I could find in a similar design fits this Toro. I ordered some Oregon .080" round trimmer line to see if it feeds better. The stuff that came with it is grey and is cut part way every 1/4" or so. It just gets eaten away so fast and I am...

You have someone who likes to play tricks on you? The rusty pulley looks like a horizontal power pulley on something. The other pulley is likely the one that ended up on top of the deck when the shaft nylock nut came loose. There are other parts likely still missing.

Yes, do take it and the parts to your mower shop. They can fix it.

don't use the choke and see if that helps. Make sure it isn't out of gas.

so what quit working when it came off

look at the parts diagram of the belts and how they run on your mower, then see what pulley it is.

look for a wire that has chaffed thru on the cable or its assembly is the first place I might look.

That model number did not come up in an online search for me although a "C" version with a B&S engine did. If that is it, it is likely that at 30 years old the carb is worn out or needs rebuilding. I'd take it to a local shop, especially because at that age you may not be able to find the...

I looked online and that may be an AU product only. There are a couple replacement heads here in the states but I can't find any websites that have a listing of what model parts I need to upgrade it. It is a Toro 51831 if anyone knows.

sound rich so I would make sure the choke is off and try it once with the air cleaner off. In which case if it then runs replace the air filter. Sounds like it is too rich so you have to figure out why. Check the oil to see if it smells like gasoline, is higher than it should be, or is thin...

try a 1/2 teaspoon of gas in the carb throat or plug hole and see if it runs for a moment. There are 3 things a gasoline engine needs to run and you messed with two of them so it is probably there, unless there was a problem before in which case why replace all those things. Air and fuel spark...

What you are describing is not possible. That carb is gravity fed. These are the only causes I can see possible. * failed needle float assembly * over pressurized tank since it does not have a fuel pump * fuel line accidentally hooked up to breather port on carb * Engine gets so hot it is...

yes, even heat from the hands expands it and makes the readings useless as to a precision tool. Some of the questions asked about crankshaft journals, things like that sometimes people don't realize how small the measurements are that are being measured. A standard sheet of 20 lb printer paper...

you missed the point. It isn't just the top to bottom clearance you are changing but also side to side ESPECIALLY if the cap is offset, which you can't measure without very expensive devices like one of these

since engines are normally turned off when at idle, I doubt if that specifically caused the issue. Maybe find a wiring diagram for it and post it. Before folks here who have access to that sort of thing, they will need exact model # and serial #

was it idling when you turned it off or running at full RPM?

they use it here when there are droughts. Companies come in and spray the whole yard. The better stuff is mineral based, non-toxic, and doesn't do more damage to the lawn. BUT -- I have no idea how anyone could answer your question accurately if you don't provide a brand and product ID for it...

some keys are designed to shear if something stops too fast so the key is damaged, and hopefully not other parts. Other keys are designed to last thru anything. There are several dimensions to a key as well as the alloys Bert mentioned. There are also straight keys. Often the terms are used...

I used to size connecting rods for a living. When the rod halves are sanded, the edges also come in closer. If you think of a clock, think of the pairs 8 and 2, and also 10 and 4. If the rod is not 100 percent centered when it was honed at the factory, 8-2 or 10-4 can be closer. Example, 10-4...

fuse, wire you broke or pulled out, switch that didn't get reconnected etc would be the places I might start.

don't hold the outside edges when you mill it, and make sure the piece of glass is thick enough to remain flat. I use an old piece of 3/8" glass. Let the sandpaper do the work. Cover the area in a sharpee or prussian blue dye if you have any, so you can see when you are flat.

sounds like it is/was hydro locked. Better check the oil to see if it is thin with gas or not. Next time you have a mower like this, remove the spark plug outdoors and try again. A large cloud of gas droplets may come flying out the spark plug hole. If you turned it on its side and left it for...

Check the oil to see if the float stuck and dumped fuel into the oil so it is too rich to run, then check the fuses, test for spark, if none then get a wiring diagram and start troubleshooting the circuit. Also look for mouse chew marks.

I'd take the carb in to a local mower shop and see if they have something that might work. Take the engine displacement with you so that can match that too. That nut on the bottom may be corroded on or they could have used Loctite on it.

Bought a Toro 60V weedwacker a year ago. The head came apart due to string grabbing things. HD replaced it. Got another. Neither feeds with a bump. I end up every minute to two having to stop and manual feed the line. About once every 3 or 4 times on that I end up taking the spool off and...

I'd replace the blade and see what happens. Then if you want to rebuild the clutch do that. It is really easy to introduce secondary issues when too many changes are made at once. Just my 2 cents.

rotate the piece and pattern you do. Another option is find a machine shop with a good belt sander that does NOT have a new belt on it cause that is soft aluminum. They can flatten it in seconds. I used to lay small heads, manifolds etc on a belt sander, move them to a couple different positions...

so until the carbs are synced that issue cannot be ruled out. Was the exhaust cleaned out, meaning are there any screens or catalytic converters that can cause excessive back pressure?

my folks had something like the broad leaf. I gave dad a old coffee can with some generic round up in it and a small foam paint brush. Alternatively mix a can of roundup and spray the stuff you want to get rid of then reseed. If you want something nicer, hit the whole area with roundup, water a...

you get the drum. We used to buy a drum and then a truck would come by and charge us by the gallon only for the oil when they refilled it.

someone posted a while back that the connector on theirs rotted internally. Make sure the PTO is actually getting voltage and that the ground connection is good too.

Got soil test back today. Iron in a part of the lawn that is thin the last few years is about 430 ppm or 863 lbs per acre. The pH is right at 6.8 so there is no desire to raise pH to lower iron availability, and the phosphate level is medium / optimal. I am going to add some Yara 21-7-14 turf...

if my memory serves me, and it may not because I don't use one but a couple times a year these days, 25 and 0 are the same hash. one turn would be 0 to 5, 5+ to 10, 10+ to15, 15+ to 20, and 20+ back to 0 which serves as 25 because the hash marks on the stem reveal every 25. It is really...

I have seen issues where the gas added was older than the gas in the mower. Someone handed a friend (his dad) a gallon of kerosene once to get enough gas on a Packard restoration to get to the station to fill it up. Engine just would not run right and no one could figure out why. Dan was late to...

I see $9.0 + .75 + .24 + .004 or .006 ($9.994 or $9.996) depending on the photo. A full revolution is .025" and it is almost that. 4 turns on that one is .1" If one wants to work it backwards, unscrewing it .0004 would make it 1.000" which is barely showing as the 4th hack mark. 1.000" minus...

the photos show two different readings. Guessing that is a 0 - 1" mic since you did not show that marking, one reading looks to be about .9994" and the other .9996". Using a mic is more than reading it. It is knowing when to read it, and how to hold it without the heat from your hand changing...

do you have a carb sync tool? Have you compared the flow on each carb?

tell us how you knew what clutch to buy, and how you matched the old and new. What was the reason you replaced the clutch?

it is for pressure systems for the street. Don't know on splash systems. You can get the measurement by subtracting the crank journal spec from the rod dimension spec. If one starts sanding, do not pinch the journal or a whole world of hurt will happen. I used to resize 50 - 100 automotive...

I can't tell you how to fix or what causes it but my eyes see scalp marks on the outside blades where they are lower than the center, and the center row has edges between blades. One can see each cut of the outer blades where it scalped. How worn are the blades? What are the outside cutting...

I don't know these mowers but here is a question. Can one misroute a belt so that a blade direction is accidentally reversed, so that the grass still gets cut but the design changes? Are the blades such that the leading edge can face different directions so that if a blade is swapped but put on...

Installing seals is a learned art. It is not hard but each design can have its own quirks. Everyone here has been through at least one botched seal removal or installation in their lives. It helps to have the right tools. It is one of the ways that tool collections grow. Surprisingly those tools...

I have seen the light. For those of you who doubt, like Thomas, I don't understand it but it is real.

with that kind of price I would be calling around to some mower bone yards to see if anyone had a good set of used tires/wheels.

grey oil can also be STP type deposits (clay or ptfe) or non-detergent mineral racing oil. I saw so much of that sh_t when working in the machine shop. It makes clay like deposits everywhere. The idea with the non-detergent racing oil is it is supposed to get changed after every race. The STP...

take a breath. :) Are you able to determine which side is now misfiring, or are both?

Are you sure it is electrical? Can the drive belt be easily removed so you can determine if load is killing it or electrical is killing it?

You may have multiple problems now with all the parts and changes you have been throwing at it. My guess is that you will need to go over your work to be sure each step was done correctly, then focus on whatever problem is left. Oil that smells like gas and oil that is thinned by gas are two...

I might add. Some carb seats require a special tool to remove and insert without damaging the surrounding area. The tool is not expensive but it adds time to the repair. If something else is causing the leak like the solenoid, then that could make the repair more expensive than buying a...

I do not know what carb that is but I am a layman at this like you, although good at it from restoring many engines and items over the years. The photos of the B&S 594593 are slightly different than your photo, and I cannot find a photo online of an original B&S 794572. The only original one I...

Just as a caveat, it is that time of the year when mowers are emerging from a winter's sleep. Make sure the gasoline is fresh. Old gasoline can cause similar issues because it is less volatile.

this 1999 tire fire burned for a month. The agency I worked for had a line of tanker trucks waiting to pick up the pyrolytic oil that flows out of a tire when it is heated in a fire. The oil is so bad it makes a superfund site when it gets spilled like that. The land owner collected most of...

Next time sand in an X. then flip it 90 degrees and sand in a circle, the flip it 90 more degrees and sand in an X or a +, vary the pattern as you flip it 90 degrees each couple sanding movements. If you have to take that much off it so one side is low now, the head was pretty warped. You would...

Thank you for sharing.

based on your other thread I am guessing it was orginally a 794572 carb replaced by 594593. I am not certain because I do not know what your engine came off of. Looks like about $112 for a genuine one. If the fuel solenoid at the bottom is leaking, that is about $80 by itself. If you decide to...

I had a factory carb from circa 1992 on an edger. It worked find for about 10 years and needed rebuilding. Rebuilt it and it worked fine. One day a jet unscrewed (that I never removed before) and it ran badly. Replaced the jet and it ran 3 more years great. One day I opened the shed and it...

did you take before disassembly photos to compare to?

and that is why they are rotting in a warehouse. right.

Since you already have a solution you want to go with, how is it exactly folks here can help?

so a little bird within the state who is involved around these kind of things told me this weekend there are now whisperings within the group of people who should know, that there are warehouses filling up with worn out and damaged EV batteries that no one has figured out what to do with them...

read this thread about 3/4 down (reply 9). https://forestryforum.com/board/index.php?topic=44379.0

and some people jut use a straw and an old soup can wired to hang next to the manifold :)

The third time he got his fingers caught in the glue and hasn't been seen since without carrying tires around with him. :)

that is a serial number. It is another way of saying "on engines of this model made on or after this serial number" then up to the next serial number series. The factory plans to make tooling and parts changes on a certain date. They record the serial number. In WWII the US Army Air Corp drove...

is it a true bendix, or a lever driven gear? If a lever sometimes the pivot screw can wear. Also always check the voltage from the battery negative post to the engine block where the starter bolts up to make sure that there is not a ground issue somewhere.

you wrote:

The first number is the winter rating. The second number is the warm viscosity (ability to pour). Hence a 5W-30 oil is thinner when cold than a 10W-30 oil. A SAE 30 weight oil does not have additives that artificially change its behavior with temperature.. Hence SAE 30 would be thicker when...

valve seals can be different types. Some are like little umbrellas that divert oil from the stem at the top of the guide, and others are wipers that wipe oil off the stem. Each has a different lifespan. The answer would depend on not only the design of the seal, but the material it is made...

(y)

Many plug manufacturers specify ON A NEW PLUG ONLY, tight and 1/4 turn. Once the crush ring is crushed that spec changes. Keep a small magnet around if you need to know whether something is ferrous or another generally non-magnetic metal like aluminum. However even aluminum will allow electric...

put a magic marker all over the mating surface and lay it on a thick piece of glass with like 2000 grit on it. Wiggle it a little and see what you are actually looking at as to the pattern. You can try sliding thin blades from a feeler gauge set on the areas where the sharpie still exists to see...

yeah, I was looking for the lost plate while putting dinner out. it was in the microwave holding something cooking. I put it there 3 minutes before. Duh. One day at age 17, about 65 years ago or so I was looking for my sunglasses. Yeah, I was wearing them. It isn't just age that causes it. Can...

A really long screwdriver or rod can help you locate where the noise is loudest. A hose the size of a fuel line can help find issues with tin or exhaust leaks etc. A loose blade might only make noise at RPM and be as quiet as a mouse at low speed. Same for a flywheel.

I would find out what the set RPM is for that engine and set the speed at that RPM. Normally that is around 3000 RPM but it varies based on blade tip speed. I would also make sure the blade is designed to lift and keep it sharp. Third I would de-thatch the lawn. Moss is hard to stop but it can...

Let's say it is parked on a fairly level concrete floor when doing this. Is there a way you can use two levels to measure the mounting point on the mower frame from the ground at each corner and see if they are all level. I would GUESS they should be. If they are then you would know 100% that...

can the OP share why this engine is being rebuilt? Is this a result of a bent crankshaft after a stump strike?

look on CL and see if anyone has a free mower they want to get rid of that has 9" wheels

are they shredding into long strings, showing cut marks, or small burned thru areas?

have you made sure that the air cleaner is good, and that if there is a fuel filter it is clean? Generally 3 things make a gasoline engine run - spark , compression and the fuel and air mixture. Compression would not change under load unless something was going on like a leaky head gasket that...

I said "duck" to get a smile, you didn't. :) Uneven decks can be hard to troubleshoot especially if it is due to a tweak from hitting a stump. I just have followed a couple similar threads recently and in at least one a support spring was missing.

The sticker you posted is about like me saying that I have a car and need to know how to fix it then posting this photo. The folks here need model and serial number to help.

does it retract properly or just too hard to pull? Remove the spark plug and see it the cylinder is full of fuel or oil. Don't do it indoors near anything like a water heater because if it is full of fuel it will spray out when you pull the cord.

well, I have been waiting a year for an Acura part. Brave new world we live in. And we thought it was stupid the old Soviets were willing to wait in lines for things.

maybe print them on a 3-D printer? The young crowd does a lot of that these days on 50 year old VWs instead of ponying up for an old stock new item, or a good used one.

I have an uneven duck too. He walks with a waddle. :) Just getting a smile. There are some folks here who will be by sometime today and they will be able to help. Might try a search. Sometimes it is a spring missing etc, or someone hit a stump and tweaked things.

Brake Cleaner and Berrymans - if I didn't have those, premium glass beads, and a parts washer I'd be up s_ creek.

Lord I am so happy my grand dad taught me how to use a -> 1,500 × 961

Geez I am so happy I stocked up on this stuff in 1973. :)

Ok, let's all give Bert a hug. ?

flammable or non-flammable, chlorinated or non-chlorinated? Some folks use soapy water and a bucket to collect it.

yep, camera's are your friend. Take multiple photos from different angles. You'll be amazed how easy it is to take a photo and something like a shadow etc., blocks exactly what you need to know to put it back together.

or post the schematic?

best guess is it was a starter pawl but without a make, model and serial number there isn't a lot one can say more than that.

one that is kept sharp, clean, and balanced

usually SKF, FAG, NSK, INA, or Timken are the better bearings. Many bearing houses can get you seals and bearings if you take the old ones in. That said, that isn't always less than going to the mower manufacturer. Avoid the cheaply made bearings or you will be doing it again.

Based on how crappy some aftermarket parts are in many other industries, I'd stick with the real deal as to belts and tensioners. That said, have you inspected the blades to see if simply sharpening them will put them back in action or have you been whacking a lot of gravel, rocks, and branches?

I wonder if someone used so much graphite in the tumbler that it got down deeper into the switch.

maybe once they are charged again they will last longer. I had to charge my Toro weed wacker for a while when it was new. Battery was only about 50%

Y'all may not know it but in an oil conference with a top CA state geologist about 10 years ago we learned something interesting. He said that about 85% of the crude oil produced in CA is actually owned by the state from settlements with oil companies in the early 20th century. My personal...

you ruined his Poll by giving the answer before the poll ended. :D

buy a socket set.

is there a buzzer or chime that isn't buzzing or chiming any more when the key is left in the ignition?

Okkkkaaaayyy. No one else posted but the two guys whom you praised. Are you here on the forum under multiple aliases? There are people here like myself who spent maybe an hour, hour and a half trying to find that part in the drawings but said nothing because we didn't know. The last sentence...

Toro 60V. Hate it. The head failed and HD had to swap it. It was just the string guides that broke but you can't get any parts for the head, or a replacement head. Got to buy a whole nother one. The bump feed I have had on the last couple require bumping while it is running. That either tears up...

if I have one on the device, yes.

you can remove the blade, try. Remove the plug, try. Remove the top and try to turn the flywheel, If it binds then something is wrong inside. Make sure the magneto isn't hitting the flywheel, loose bolts there or something. Just keep removing things until nothing is left but the engine core. If...

might not be the carb. Could be a valve. Could be a vacuum leak. Maybe even a hole in a muffer if it is an exhaust sound. Or it could be the blade hitting something. One turn is one full 360 degree revolution of the screwdriver or tool.

put a half teaspoon of gas in the plug hole and try again to be sure that it is a spark problem and not fuel. I've had more than one person tell me there is no spark and when I checked it was fine.

I always spin an engine with the piston off by hand to be sure nothing binds. It can be a seal, a bearing, or piston rings that have too much friction. Do check the oil to be sure there is no gasoline in it. It can also be fuel draining into the cylinder.

super that it worked out. Figure out how many hours/years etc are on the unit and what the odds are you will keep it that same length of time. If that sounds reasonable buy a spare coil while you can. Example - if it is 5 years old and you think you will have it in 5 more years get a spare coil...

maybe a photo of the box of parts you have too if that is how he handed it to you.

what valve guide? All I see is a big hole with a valve stuck in it,

doing a further Internet search, one showed on a spreadsheet of Honda Parts in stock as of 3-31-22 at a large warehouse specializing in mower parts. You'd have to contact them to see if they still have it. Now the bad news. The name of the business is Motogarden, and they are in Spain. The...

I looked at ebay all over the world and did not see one. My only suggestion at this point is either set up a search on ebay and wait until one comes up, or take the carb off (take lots of photos of the linkage first), and take it to a local shop that works on Honda engines and mowers to see if...

Craftsman doesn't make anything. They buy their products from known manufacturers but painted in Craftsman colors. Usually the first 3 digits will tell you whom the manufacturer was.

I'd put a a half teaspoon of gas into the plug hole, put the plug back in and see if it will fire. You can also turn it over with the plug out before you do that and see if you have compression. Use a compression gauge but if you don't have one put your thumb over the plug hole - you'll feel it...

If the restriction is between the carb and fuel pump is is likely there to keep the fuel pump from overwhelming the carb.

where does the engine get its cooling air? Are clipping flying around wherever the air intake is?

no specific answer but any transmission low on oil would be a bad thing. Old oil can be an issue too. I remember taking a differential cover off a friend's car one time that had quite a few years on it. The paraffin in the oil had separated out from all the whipping, like butter comes out of...

there are also a couple places online that specialize in armature bushings. I came across them earlier today looking to see if I could help. Looks like the way you have to get them for the starter otherwise is buy a bendix or starter repair kit - which were like 3/4 the cost of a new starter...

looks like it got really wet is what he was saying. That kind of rust doesn't form in a dry environment.

if the carbs were over tightened during their lives, it will warp things over time.

when you lay it on the side with oil in it you fill the cylinder with oil, and you may drain gas into the oil too. Put a compression tester on it next time.

did you swap spark plugs?

or warped fuel tank. You need to check both the carb base and tank base in like an [X] with a straight edge.

red Loctite but clean the stud first. Double nut, Red Loctite, breathe on it to get some humidity on it, and tighten it just a little. Let it cure overnight, it won't come out.

I thought Loctite blue was softer than red, and green was the highest. That said, does the stud feel right torquing into the head? Is there room and angles to install a heli-coil or timesert?

unless the bolts are corroded, look fatigued or crystalized, or they feel like they are stretching when they are tightened I would use the old ones. As to rod bolts it is a crap shoot. I have seen new ones stretch below the recommended torque, and I have seen the old ones fail. Anyone remember...

then I would put an amp meter on it and see what the parasitic drain is. It could be a bad diode in the charging system, or a bad relay. Need to post a wiring diagram for it or model and serial if anyone is to give much more help than this generic suggestion.

my suggestion is to see if Home Depot rents battery powered electric mowers and try a couple that look like what you might consider. Around here all the electric mowers lack the HP gasoline powered ones do. Just looking at HP alone, a 5 hp electric motor needs about 20 amps at 120V to make 5 hp...

I think he said that when he put the same carb from another unit on it the problem went away so he is replacing the carb and being done with it. Guessing he checked the intake runner for cracks.

start with the battery. How old is it? How many times has it fallen to a zero charge in its life?

Hey Bert I am with you. 1950. Things ain't what they used to be. Even my most liberal friends from HS and University days say the best days are behind us. Don't think any generation has ever felt that way.

what Bert said. It may be that the intake or exhaust valve is not properly opening.

Put your hand over the carb mouth and pull the handle. See if you feel suction.

Try to find the correct wiring diagram for your mower and your questions will be better answered. Good luck.

my 2006 mower has been flawless for 15 years. My stuff from the 90's started having issues when ethanol was introduced. We live in a climate where these devices are used every 7 to 10 days. The fuel never gets a chance to get really old. That said the California gas cans are sealed so they...

I am sure that 99% of the station owners and drivers are honest people. We just had it happen at one station that we used to use. It was a Top Tier brand too. I spoke with their corporate Engineers when it happened to let them know so they could deal with it. We now use another Top Tier across...

Here in the part of California we are in, e-10 ethanol in pump gasoline is mandatory. They tried something else in the 90's (MTBE) but it was getting into the ground water and lakes. I keep accurate logs of mpg for all our cars and know exactly how they perform. The two FI ones are quite stable...

best guess is you will be the guinea pig in this experiment. Most of those type tillers the last 25 - 30 years or so that I have seen have welded case halves, that are disposable, and not easily disassembled. A Tractor Forum might have some folks who have dealt with bolted together...

buy a couple new zama carbs [$12 to $13+/-] each usually unless you buy one in a zama box $30), with the correct part number and see if that doesn't fix it. Usually the problem with them not working is the gasket that goes against the engine and has the flaps that are fuel pump valves. That...

Before ethanol gasoline I never had problems with carbs on my mowers. They lasted like everything else. Since ethanol gas I've had nothing but problems. It is always a warped or swollen gasket causing issues, or corroded metal in a carb. Lately I have started using canned fuel and I can tell you...

so if a known good carb runs right then your problem is in the old carb. Clean it again, inspect each port, check everything on it, replace the gaskets. Try again. That said, I have one on a 5hp Tecumseh that didn't work right. Rebuilt it maybe 3 or 4 times - not hard at all having done carb...

your problem is always on the side with the smallest change in RPM and sound on a cylinder balance test. The reason is that the engine is relying mostly on the strong cylinder to run.

the regulator has a 15V dc output on that schematic. On the red wire going to a relay.

Are they two stroke with the oil and fuel mixture 50:1, and the zama carb? I find that on those the fuel pump diaphragm that sits under the carb goes bad. It costs as much almost for a carb kit as a new carb if it is that type engine. I was getting about six months to a year on them with the...

https://cf.hondappsv.com/files/OM/OM000026GLOBAL/HRX217%20HYA%2000X31VH7J040[1].pdf

The damaged connector may have been a problem waiting to happen, but another problem may be present too. If I had to guess, the connector was corroded and as stated that caused resistance and heat. The fuse blowing might say something else went on too, so I would still look to make sure nothing...

The OP needs to post the status and where he wants to go next with this.

I don't know your mower but in general - if the burn inside the cylinder extends beyond the cycle, an exhaust can get very hot. Causes of this can be varied but I will list a few I know. Too lean a mixture. In a lean mixture the fuel molecules are farther apart. They burn slower and this can...

I think it is .010" I use a special brass sheet but some folks just use a business card.

I haven't done one but normally one needs both the insertion and/or extraction tool(s) and the special crimper tool on specialty connectors. I had a friend that used to make insertion and extraction tools used in that type stuff. And... one wire in the wrong spot can ruin a month. about the...

I think that one can file for medicare, and postpone on the Soc Sec part but I don't know for sure. I know that when covid hit the wait times at soc sec / medicare offices went astronomical. It was like six weeks between appointments back in 2018 when I retired, "fill this out, call to make...

actually Liquid Wrench converts red rust to black rust to make the molecules smaller. I had exhaust manifold studs that were so tight on a sports car that they would not loosen double nutted without risking snapping them. A good machinist friend advised me to specifically use that product...

according to Jacks - 34443D take a close look at yours and the flywheel to be sure iron filings aren't shorting it out or the kill terminal.

may not help even if it measures right, the secondary may be jumping a small gap between wires internally and not actually shorted as you think of it. Was the air gap clean and correct? I have heard of filings getting picked up over time and shorting the air gap out as to proper magnetism.

do you have any needles and syringes? Maybe lead hammer time?

I dunno. Got named one time in a civil lawsuit back in the mid-80's in the all those other folks involved list because someone borrowed my office and desk to sign a business transaction that went south. I was on vacation and literally knew nothing about it nor had I been involved in any way...

using Jacks for a parts diagram (there was no serial number posted by the OP so no idea if it is the correct one) the flywheel is 31100ZE6802 and the coil and charge assembly is no longer available but it was 31630ZG9003 31630-ZG9-003 .

if you are full time and not a semi-hobby I would raise /hr price. Add up the hours you loose looking for parts, checking inventory, invoicing, keeping your books, doing your taxes etc..

just a GUESS that is a crankcase vent. Probably goes to the carb or air cleaner.

starter does not show a ground either. That said, state just announced it will be 1700 megawatts hours short on power this summer at peak afternoon and evening hours. A couple months ago the state came out with a study that in 2030 it will need 5500 megawatt hours more daily to charge the EV's...

there could also be internal damage in the wires from stretching them. Some of it may not even show up until it has been used for awhile.

1. Air to fuel ratio 2. Compression 3. spark at the right time Which ever is missing is why something does not run right. It really is that simple.

2021 model, 50 hours. sounds like warranty time. I would think belts, pulleys etc should last more than 50 hours.

If it was the first start of a new season I would always suspect bad fuel or varnish in the carb, or maybe a mouse or rat chewing on wires.

be sure they show you the repair so you can assess whether you feel it is to the manufactures standards. Most mechanics are miserable when it comes to electrical problems, and even more so these days with the complexity of the electronics. You got 20 minutes on the first fuse. Let's pretend that...

I'd check battery voltage and connections. A battery can die like that fast. I was sitting idling one day waiting on the other half for about 2 minutes. Suddenly all the lights, bells and whistles went off on the car engine and it died. It would turn a little then stop. Turned out to be the six...

also what engages the blades, a mechanical system, or an electrical clutch?

I would think that psi would work. My mantiss went thru those Zama carbs like a kid eats popcorn at a movie and the carbs only lasted six to eight months if I left ethanol fuel in them. If I drained it and ran it dry I could get 2 years out of one. The diaphragm under the carb that doubles as a...

I knew there was some reason we had trouble on grades.

owner manual if craftsman https://www.toolservicenet.com/i/CRAFTSMAN/GLOBALBOM/QU/CMXGVAMKC29C/2018/Instruction_Manual/EN/769-17370_CMXGVAMKC29C.pdf be aware that MTD shows two different products with that part number, 21AKC29C793 and 21AKC29C791 Jacks 791...

Make sure the gas (and oil mixture if applicable) is fresh and accurate, that the hoses aren't swollen shut that come from the tank and/or replace the carb. The parts manual doesn't show a filter inside the tank but there may be a small one depending on the tank style. Those throwaway carbs can...

just a guess but sounds like the needle on the carb needs adjustment if it has one, pull the throttle once it warms up a minute or two, and slowly turn the screw counter-clockwise until it runs better. At full throttle adjust it where it runs best. Then let it idle. If it dies adjust the idle...

753-06974 comes up on ebay occasionally. There was one sold 2/25/2022 and one 4/21/2022

my instinct says cheaper to buy new saw.

You win. We can't guess the make and model. Now give us the model number and serial number of the mower, and of the engine. Maybe some photos, and also tell us how old the fuel in the tank is.

why not post the model and serial. That said, can't you tell from the way the starter rope was attached?

keep in mind that he gets 25 yards of normal mowing before it "sputters and dies."

first thing I might consider is fuel flow. When the blades are engaged the engine needs more fuel. If the fuel filter for example is restricted, then the load may cause the bowl to drain once the supply can't keep up. Same as a car running into problems climbing a grade with a dirty filter...

your carb is not working right. I am hoping you cleaned out the gas tank and lines also when you cleaned the carb? If not, do all of them and the carb again.

can you post your wiring diagram so we can look at it?

unfortunately the parts shotgun method is common on everything these days. Attention span deficit disorder is so prevalent that many do not have the patience to watch something for the five minutes needed to figure out why something doesn't work.

Bert, when I head off to bed shortly I will make a special prayer that all your dreams will come true. Until then, hang in there. You are not alone.

does anything last past a couple years anymore? All I read these days on the forums is about mowers that fail after a couple years of lite mowing. GM and Ford invented sealed connectors years ago that keep moisture out almost indefinitely.

think I will move to farmer land. How are the twisters this year? Lord I hate those.

edit: I found a parts manual for a MNA 152506 on a Murray site. It appears they use that same model number on both 20" in 2021 and 21" mowers being sold now. The blade part number in the model "Parts manual" is 84006775 but the image of the blade adapter looks different than yours, however the...

lucky fellow. Here in CA about all we can get that is non-ethanol is either canned mower fuel or canned racing gas these days. All the places listed for non-ethanol are mostly gone now or just sell the canned racing stuff. I used to run AV gas in a boat and race car years ago, but since 9/11...

did it get stood up or laid on its side?

is it still under warranty? Be sure to check the oil too since that gas may have drained into the oil.

that makes sense. The bearings must free float. Driving them against each other removes the float.

take it out then tighten the cover on as someone else suggested. If the engine runs right it is the filter, if not then the screws are tweaking something that causes a vacuum leak etc.. I seem to recall some conversations here where some engines have a fuel pump diaphragm built into the base of...

the pin is a cast in woodruff key. The part seems to run $55 to $85 depending where it comes from. Here is a used one that may work for about $like 27 shipped. There are a couple other used ones on fleabay too. https://www.ebay.com/itm/134042336395?hash=item1f358bbc8b:g:~5gAAOSw5chiIP4E

the obvious must be asked. Is this a new oem or equal filter? Other than the screws warping something that causes a vacuum leak, an air filter restriction would cause a rich running condition. I had one on a mower once that had gotten wet. It looked very clean but the water had changed the...

it does the same to me. I had to break it up into 3 viewings to get thru it the first time, but the guy is dead on. reminds me of a math teacher I had once in 10th grade, Mr Warner. Sort of ironic too, my grandmom was a Warner. :)

why not just sharpen the blade that came with it, then balance it?

I have only had water in the fuel a couple times in my life. Do what you think best. Ethanol absorbs water, the water only comes out of suspension when saturated.

I usually follow what the manufacturer recommends. While it is a long discussion I don't want to get into, the molecules in a lower grade gasoline are more prone to self igniting at lower pressures than a premium fuel. Some manufacturers will tell you not to use premium, and others will tell you...

My bad, I assumed his new bagger would have a blower with it.

I have a similar engine on a Craftsman Pressure washer. On mine it is labeled Quattro 4.5 HP. Same air filter housing and carb as yours. I think Generac made it. Here is what I did to get mine running at 100% Replaced the head gasket. The head comes loose over time. At least re-torque it to...

The 3 basics. Spark, air/fuel, compression. Figure which is missing. I will be candid. Really good with engines - spent about 5 years racing in my late 20's and worked for a machine shop that built all sorts of engines - even for Indy, NASCAR, and the Baja races. But like you sometimes my mower...

My push Toro has a recycling (mulching) blade and it bags fine, including leaves. Worst case you might have to replace the blades but I would at least try it.

Sounds like a fuel supply problem. One thing I might check is the oil before you start it. If the fuel is draining into the oil it will run rich until the fuel evaporates from the oil as it heats up. Do a basic tune up on it, oil, fuel filter, air filter, make sure the engine has good...

some of those type flange and curve arrangements help create the airflow that lifts the cuttings. I don't know about that one, the photo is too dark, black on black etc.. My Toro Recycler has something similar and it helps with the recycling of the clippings or lifts them into the basket. Some...

I would also be sure the air filter and oil is changed annually. Run it dry when you are done with it in the fall so the gas does not get a chance to turn to varnish. What Rivets said also.

probably a really long shot, but thinking about it, on mine there is a woodruff key that holds the blade hub from spinning on the shaft. i have no idea what it would sound like if that key was sheared and the hub was partially spinning on the shaft.

The Hydro Gear link I posted earlier is whom I would reach out to for local service. I would have used an old belt around the pulley to hold it but that is water over the dam now. I took a look at the transmission manual and it looks reasonably complex and some special tools were mentioned...

Also, the fuel in the bowl and line will be old. Just because the fuel in the tank is new doesn't mean it has made it thru the carb yet. Put a quarter teaspoon of so of new fuel in thru the spark plug hole and try again. I find that mine starts easier if I pull the handle until I feel firm...

on mine there is a baffle at the back that can get bent and the blade will touch it. Take a second look. Also make sure the engine bolts to the deck are tight, and that the blade is balanced. Put a round shaft screwdriver thru the center hole and hold the blade at different angles, see if one...

oven might work. That is how pinion bearings go into and come out of vw bus transmission cases.

will they both drive out in one direction with a press or is the inner sleeve a part of the housing (which I suspect it is)? Weird stuff like that I used to try to use a cape chisel to try to catch a corner of the inner race from the opposite side, and work my way around to where I could use a...

Hope it works out. Looks like many of those parts that go with the deck they want you to order a whole new deck.

Jacks Small Engine shows that as an FR73. Are you the original owner? https://www.jackssmallengines.com/jacks-parts-lookup/manufacturer/gravely/zero-turn-lawn-mowers/zt-hd/991082-030000-034999-zt-48-hd/engine-and-clutch

https://partscatalog.deere.com/jdrc/sidebyside/equipment/77496/referrer/navigation/pgId/2402815

based on that photo, I would think any round or rectangular tank roughly that size would work. it is only held on with. Google small gas tank, mower gas tank, riding mower gas tank etc.. https://cc.shankslawn.com/oemparts/a/cut/5b7465f587a8661288174e8b/tank-assembly a strap.

As Star Tech indicated, that model does not have a transmission fan in any of the pictorials. Check the number again please.

people here need the model and serial numbers to even have a chance to make a suggestion. Using the T2400 model, which could have different variants, the transmission online looks to be $600 - $800 as a complete unit but without a model and serial you really won't know. There are places that...

change the fuel filter if it has one.

keep in mind that ether (starting fluid) doesn't burn, it explodes. If you use too much it will make a loud knock. Can blow head gaskets etc.

probably acid, can be overcharging, a bad cell, leakage of the seals at the posts, low fluid. Buy a new battery only thins time coat the posts and bolts with vasoline to keep the acid off.

My question came because you moved the arm right at the throttle. What I wanted t to know was if you moved it all the way at the very back where it comes out of the engine, does that movement relay properly all the way to the front?

does the governor assembly work all the way to the back, meaning are all the components connected all the way to the governor shaft? If so it sounds like the governor inside the engine has failed.

you can have spark outside the engine and none when there is compression. Get a spark tester Check the compression Check the grounding wire again. Check the fuel again, and check the oil to be sure no fuel in it. Try it with starting fluid again. Clean out the mouse nest because that may be...

so y'all think zero-turn snorkels might sell?

I've been following this technology for about 7 or 8 years. I believe that the Swiss were the first to figure it out. https://www.inverse.com/innovation/mechanical-trees-co2-climate-change

If someone believes genocide is acceptable then the war can be acceptable to them. But,for most people, they realize that genocide is unacceptable, and when a bully attacks someone it is just a matter of time before they are next, regardless how much of a friend they think they are with the...

how about a photo of the tank including how it mounts

Next time ask "Other than that, is there any other reason you don't want me to clean up their yard?" Then 100% shut up, not a peep out of you, zip it, and let him ramble. If there is a reason he will tell you. Or he may simply say, "I don't like them go to hell," and go inside." But if it still...

Having considered the math of rebuilding older 4 - 5 HP engines, as others have said, it is less expensive just to buy a replacement. I recently replaced a head gasket and carb on a 20 year old engine, spark plug, air filter, adjust the valves, clean up and paint, and maybe had $85 in it when...

or talk to some of the nearby muffler shops or fabricators. example https://www.risefabshop.com/

disconnect the starter and solenoid wire if you think they are the cause. Be sure to wrap them somehow so they cannot ground out. Then see if that stops the fuse from blowing. I don't think it will but at least you can eliminate them in your mind.