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Since you supply us with very little info, it is impossible for us to even make a guess. We don’t know the type of blade you have, Star hole, round hole and thread size in the crankshaft, length of shaft extending out, etc. Don’t know the brand of mower or model or why you are replacing the...

I would take a needle nose pliers and bend the metal your finger is on in the first photo. Bend it approximately an 1/8” out to expand the spring, putting more tension on the governor. Start the engine with the control ar high speed and see if there is any change. Report back.

Try this one. https://mchenry-power-equipment-inc.mybigcommerce.com/genuine-ayp-sears-husqvarna-door-rear-22-craft-fg-rg-eba-part-581747804/ https://www.appliancepartspros.com/hus-door-rear-22-581747804-ap6182672.html?srsltid=AfmBOopseTHIoa1Hf_aSzWhYR9NB8rlh8lAd9rPpuGi0h1n4frCXzXPz

Google search using the part number I listed shows many available.

I don’t know where you got those part numbers, but when I search your model number I come up with part number 581747804 for the rear door.

The experienced techs on this forum hate guessing when we have so little information. Without having all engine numbers we have no idea what you need Each engine manufacturer has multiple engines with multiple starters. You don’t even provide us with the engine brand. We are good at helping...

Those gears are over the hill and need replacing. Toro part number 131-5399. In your other thread you stated they were in good, no where close, which is why I never suggested changing them. Also tells me you really didn’t spend much time looking at the manual I posted. Must have been too...

Harmonic ringing on an electric mower is normally caused by either a blade which is unbalanced or a motor going bad. I would remove the blade and run the mower. Noise gone blade bent or unbalanced. Noise still there, motor going bad.

Snapper used about a half dozen different discs. Need model number to determine which one you need.

If you have no voltage in step three, that would indicate to me you need to check the following. This is the times where even experienced technicians start to pull their hair out and question their sanity. Good Luck. 1. You say you changed the key switch and. Have you checked to make sure...

I’m NOT saying go purchase more parts with out doing more investigation. It would be much easier if I was standing next to see what you’re seeing. That being the case, this is what I would do. 1. Remove the deck. 2. One at a time remove each pulley and carriage bolt and check that there is...

After watching the video again and looking at the parts diagram I’ve got more questions than suggestions. When you replaced parts, did you use OEM parts? Small pulley Husqvarna part number 532177968 Large pulley Husqvarna part number 532197379 Belt Husqvarna part number 592855001 According to...

In the video I see two things I don’t like. One, the large idler pulley is at an angle. The idler tensioner arm may be bent. Second, when disengaging the PTO, both idler pulleys wobble, indicating to me that either pulley bearings are bad or the studs are worn. Either of these can cause the...

Owners manual states the following: 5. TRANSPORTING 1. Disengage power to attachment(s) when transporting or not in use. 2. Do not tow this machine. Use a suitable truck or trailer when transporting on public roads. 3. Use extra care when loading or unloading the machine into a trailer or truck...

You’ve posted 2 threads with the same problem and have done what experienced techs never do, THROW PARTS AT IT TO SEE WHAT STICKS. As Star said you need someone to hold your hand and I will give it a try, but I’m assuming you have some electrical circuit knowledge. Here are two procedures on...

There should be retainer ring holding the bearing hoc in place. This service manual should help you out. https://www.toro.com/getpub/22446

This might help you identify the regulator you are looking for. https://www.briggsandstratton.com/content/dam/briggsandstratton/na/en_us/Files/FAQs/alternator_replacement.pdf

Easy there Adam, you’re the one who’s coming on strong. IL has been around for more years than you’ve been working on mowers. We can’t provide accurate information if we are given bad information. That part number is not an Oregon part number. Wouldn’t be the first time big fingers or bad...

Try this site. This is one time I highly recommend going through and double checking with a Stihl dealer, as if it doesn’t fit you should be able to return it. https://www.diyspareparts.com/parts/stihl/diagrams/fs-66/

Did you ever go through the procedure I posted to pinpoint a cause?

Please double check your model number. When I plug it into parts lookup, it comes up as a simple push mower, not self propelled.

The real problem here is that most DIY guys really don’t know how a small engine works, especially carbs. They think that it takes too much time to learn about the equipment they are working on. They want us to do the research for them and then rely on answers provided by other DIY guys who...

If this is a twin cylinder engine check to see if both cylinders are firing. When you report back be sure to include all engine numbers.

Does your mower look like the one in this manual? The part you are looking for is called the traction cable. Let me know what you think. https://archive.org/details/manualsonline-id-3d331076-d519-415a-877f-2156094c276e/page/54/mode/2up

Two things to check the next time it happens. As soon as you feel it starts to quit open the gas cap. If it continues to run, your gas cap is bad, vent plugged, and needs to be replaced. If this is not the problem, purchase an inline spark tester, and check for spark as soon as it quits. No...

Here is how to test relays. To test a lawn tractor relay, you'll need a multimeter and a 12V power source, like a fully charged battery. First, identify the relay's terminals: typically, terminals 85 and 86 are for the coil, and 30 and 87 are for the switch. Apply power to the coil terminals (85...

Was the procedure I posted too difficult for you? If so I’ll try to find one that is a little easier to understand in my files.

I’ve seen it many times that a belt which is the wrong size, too long or short, wrong angle, cause problems which I would not expect. That’s the reason why I always use OEM belts unless I have no other choice. Yes, I’ve seen OEM belt that are the wrong size.

Glad you found the problem. Sometimes it the simple things that drive you crazy.

Belt number should be Ariens 21547188 V-Belt. Your belt may not have the same angle, which is riding to low in the pulleys.. Also check to see if the pulleys are in good condition and the tensioner arm is moving freely.

This site does not have your engine, but the gaskets and carb are the same. Carb part number is 60730 and I think the two gaskets you need are part numbers 36182 and 36183. Hope this is of some help. https://www.partstree.com/models/ult50-500032d-tecumseh-engine/engine-parts-list-vlv40-0/

This manual should answer all your questions. Page 10.6 has the torque specs. https://mymowerparts.com/pdf/Kohler-Service-and-Repair-Manuals/Kohler-Service-Repair-Manual-Courage-SV470-SV480-SV530-SV540-SV590-SV600.pdf

BBill, get your act together. There are two different numbers because you said you need both belts so MParr gave you numbers for each belt. My suggestion is if you don’t understand this, don’t try to change either belt. Might be in over your head.

Since I’m not standing next to you, looking at the unit, it will be very difficult to say what belt length you need. Yes, belts are expensive, but you don’t want to buy a cheaper belt with the wrong angle. As stated, your best bet is to contact a servicing dealer or contact Big Dog directly...

Jack up the rear end and see if the wheels turn at all. Also, remove the belt from the tranny pulley and see if anything moves when turning the pulley. Check at different speeds. Check and see if the brake is frozen tight at the tranny.

Try this site. Searching with the little info you want to supply, as Auto Doc says, can be difficult. Hope I picked the right unit. https://documoto.digabit.com/ui/book/552685

Do you need deck belt or drive belt?

Here is a wiring diagram for your unit which may help you out. I’ve also attached a Briggs charging system service manual which may also help you. https://www.partstree.com/models/309029x92c-briggs-stratton-30-rear-engine-riding-mower-2004/electrical-system-1/...

Engine model should be a 12F802-0650-01. If it came to me I would pull the head and do a little diagnostic work. Check to see if the valves are closing properly, is there any slop when pushing the piston In different directions, how does the cylinder look, etc. if the cylinder looks in good...

Do you have any ideas how many different types of units Big Dog has produced? Not going to get much help unless you post model and serial numbers for your unit. Our ESP and crystal balls are very fuzzy due today’s climate. You must help us before we can help you.

Yes.

Wheels are not interchangeable. If the drive gear and wheel gear are in good condition, I suspect the the bearings are going. Need to replace three parts, bearing hoc, bearing and bushing. I’ve attached a site to look up the part numbers and a service manual for toro drive systems to help you...

As IL said, you need to use the one recommended by the manufacturer.

Because I’ve work at my own business and for other businesses, unless I have no other choice, I always purchase and use OEM parts. My bottom line and reputation are not worth trying to save a couple of bucks. Plus, it is far easier to make a warranty claim, if I do get a bad part.

As a retired instructor I’ve answered more questions than you’ve ever asked. My problem is with those who are so fixated on what they want, they disregard the answers they are given. You say you’re probably going to tear it down, why not remove the head and see if we are right, blown head...

Ok, don’t waste your time calling Briggs, probably a bad idea anyway. You came here asking for help and the symptoms you described would lead a good mechanic to start with a blown head gasket. Doc and I both are leading you to repair the engine, which would be far cheaper than replacing. You...

I would remove the carb and check that the float level is correct. Many times the needle will swell, causing a lean mixture. You will need to replace the float needle to correct this condition.

I would contact Briggs customer service and explain the problem. Only costs you a little time no matter what they say. Being a service tech for more than 35 years I’m pleasantly surprised at the answers I get more than once. Try this number, stay calm and explain everything you’ve done to...

First, if it is only two weeks out of warranty I would be going a GOOD authorized Briggs repair dealer and see if Briggs will authorize repair. To me it sounds like a blown head gasket, which will definitely rule out replacing the engine, but repairing the problem. Even if you have to repair...

Original Headlight assembly is Toro part number 116591. Might be able to find one if you have a small engine grave yard in your area.