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if it snaps back hard on you then the flywheel key could be it or the exhaust valve is not set correctly and or the compression release is not working.

A couple thoughts to make your efforts a success from things I have noticed in your pictures, my experiences, and are in no particular order.. :) 1. Plug up all the open areas you have and clean that engine. put dip stick filler back in, put plug in, cover the carb area with plastic. I use...

rubbed area on flywheel is from the brake, not the coil. Mowers with the blade stop brake all look like that.

Maybe your wife is subtley trying to tell you something. :) Can you just start it for her?

your starting fluid is just taking the place of what the primer bulb is supposed to do. You should be able to see the squirt of gas when you press the primer bulb. with the airfilter outside cover and the air filter removed, take a look inside the carb throat to see (or not see) the gas...

What part of the tractor hit the stump?

Another way to check the flywheel/key. Pull plug and pull off the engine shroud so you can see the flywheel and coil. Turn over the engine the correct direction and position the flywheel magnet just after the coil pickup. That is the time that the coils primary is collapsed and the secondary...

I would ask myself, ... Do I like working on mechanical? Do I have the skills/tools or want to develop them? How much mowing will you be doing? If the mower fails does that put you in a bind? Can you actually find parts (blades, plugs, cables that fit this mower?) Shop / repair labor $$ are...

This lil trick is magic with small engine carburetors that have a stuck primary jet. Not sure where to post this, so in the repair forum it goes. Long story short, the primary jet in a chokeless Briggs carb was really stuck. Slot in jet had been damaged "before me" and I carried it through to...

I did not see a governer spring on the governer rod/shaft. Get one if missing and replace. There is some black tie wire or such, get that off. Choke is closed in video, as others have mentioned. The choke assembly is not assembled correctly. broken, and / or not properly connected to the...

Check the compression on the engine. Should be close to 60PSI with the compression release. If it is higher then adjust the valves. pat attention to the exhaust valve as it is the compression release with the assistance of a cam "bump" that opens the valve a smidge for compression release.

Wish in one hand and poop in the other. See which hand is filled first.

On a $600 dollar Kobalt Electric mower the blade adapter is made of plastic and the blade shearpins are plastic nubs. hit anything with the blade and that blade adapter is done. Oh, and Kobalt does not provide a replacement part. $600 mower on side of road... Lowes has an issue ....

Broken or weak governor spring?

did you remove and clean the main jet, idle jet and emulsion tube from carb? I do not know about this carb but have been told there can be a "final screen" in some carbs on the fuel inlet, between the inlet and needle seat. Some carb clean in reverse as it were. I'd also check your float is...

think it was fixed a couple days ago... :)

you mentioned you disconnected your oil level sensor. Generally, the "Run / Off" switch is also connected to the one coil kill wire that goes to the coil. you might see a two into one pigtail connector. disconnect both to rule out the oil and run stop switch.

air filter off, short squirt of carb cleaner in the throat of the carb, close choke, does it try to start. yes / no?

Instead of loading the parts cannon up, troubleshooting is the path. Others have said, but; good compression? good spark? Spray carb cleaner into carb "throat" just a small squirt, close choke and try to start. trys to start, then you have a fuel delivery problem, no start then you have...

thanks for the thought. I did consider taking a hack saw (no real machine shop stuff here) to shorten. Not sure if I have enough keyway as the orig engine is 1.8 inches long. I will check it out though. Maybe some spacers and a cut would get me in the ball park. thanks!

Well, Generally, gas can go two places. Fire or into the oil. how does the oil smell? I do like the idea of a poorly adjusted choke as well. How does the plug look? rich or lean?

A closing update: Well, I tried to find a Briggs to fit this need. I did drag home a Briggs mower engine but the shaft was way too long but would work with a different crankshaft I believe. Hope this helps someone in the future. Now looking for a Briggs powered Pressure Washer with a blown...

Uh, this is a mower, not a 69 pace car convertible Camaro. Paint it cheap and don't look down .. Or, do a camo paint job so it is harder to find. that would cut down your mowing time. yuk.

I bet noone has ever said that this is a slippery slope.

Well then, let us do it proper. And Remember .... 89 octane non-ethanol fuel ... 👽

check those bearings and replace if plastic caged. dont use pre-mix fuel. Check out what Chickanic has to say. you may have burned your saw by using pre-mix. She has a couple rants on pre-mix and does not like the fuel at all. There are a couple vids you can search for on her youtube page...

I have read that the Nikasil coated piston and cylinder are better. I upgraded a MS290 to an MS390 with a Nikasil coated set. Maybe others could comment on this coating and if it is worth the extra $$'s. Also, do not know bout the MS271 but a couple MS250's I have worked on had crank bearings...

Knowledge can be gained and tools can be purchased.

My little ditti on the 725EXI was not a request for help but a suggestion on this old thread as to what could be wrong with the original problem engine / mower. I like these forum posts as a "library" of possible answers that may help someone in the future and so I throw out my 2cents worth...

Briggs 725exi have a plastic cam lob setup and break. you may need a cam.

Fuel tank is not venting. The 5 minute run is about what a full float bowl would give. I think the carb is ok and you have an obstruction in the fuel tank to carb. be sure to check the fuel tank for a filter as well. try running with an alternate fuel source.

One more thought. I have heard that "some" carb manufacturers place a "filter" or screen inside the fuel inlet. Therer could be a hidden obstruction inside the inlet for fuel. Just reverse air pressure or carb clean to clean..

Apparently the shaft shrank, it is cold outside though. Looks more like 2 inch now. hope pics help figuring the puzzle.

I need to repower a pressure washer with a used engine. My neighbor's 6HP Flat Head Briggs vertical shaft blew a head gasket and ate the piston / cylinder. It has that off center three bolt mounting to the frame. I believe the shaft is a bit over 3" long and 7/8 diameter with keyway. I have...

If you are considering a new carb then you could try giving just a bit more fuel through the main jet. Micro drills would let you "open up" the main a bit more to see if that helps. Not much, very little or your orig carb will be toast.

When cleaning the carb, did you remove and clean the emulsion tube? Wondering if you need to go through the govenor setup to get the linkage correct?

You can also check the effective ground between the coil and the engine mounting point. also, clean both the coil contact point where it contacts the engine and the same place on the engine side. Make sure the coil is tight to the engine with good groud between. Do Not over tighten the...

Thought to give a final wrap-up of the repair effort on the Deere L130. This is what I think fixed it. As a reminder, it had high crankcase pressure, NO pulse for the fuel pump (easy test is to just crank engine and put finger on the pulse line, you will feel the pulse if it is working)...

thanks again, The streaks feel smooth, not gouged or rough.

Thanks for the reply. so, a problem or let it go and put back together?

I have a JD L130 with the Kohler CV23S with only about 150 hours on it. Fuel pump stopped pumping is where the story starts. 1. replace fuel filter and fuel pump with metal Mukini, blew air thru gas lines to tank to ensure that was clear. Did not fix anything. 2. Compression test was 200 on...