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Yeah, I bought a pack of new keys and had no luck. That was what finally made me give in and buy a new motor..

Final update: I managed to get the flywheel off using a combination of the flywheel puller, a hammer, and a crowbar. The flywheel key was sheared, but I think I originally sheared it in the process of getting it off... I replaced the key and still no luck, it backfires and smokes but that's...

Thanks for the reply, what should I use the rattle gun on? The bolts seem to be in enough, I thought I was supposed to be tightening down the nuts on the puller. I don't know if I can really use a drill on a nut in this case

Forgot about this thread, should post an update. The riding mower is still dead, despite everything appearing to work. It gives smoke periodically when starting, but doesn't turn over. I assume either the ignition timing is off or the valves are in need of adjustment. I gave a rough valve...

Got the blades sharpened and the 'transmission' adjusted. Works great! It needed a $10 cable but that was it. A total of $10 and a few hours of work for a like-new mower seems worth it. Will be working on the riding mower tomorrow, hope it runs!

Everything's back together, but still not starting. I suspect it has too much friction, since it's harder to turn than it should be, plus the starter is running slow. Going to try putting some oil directly in the cylinder tomorrow, as that's all I can do for now. In the mean time, I picked up a...

Thanks, didn't see this until after but I got it off with the impact drill. Now I just need to put everything back

I used to have this issue with my Homelite trimmer, would run for a few seconds but it wouldn't start till the next day after that. Believe I narrowed it down to a carburetor issue, so try some carb cleaner and maybe rebuild the carb. Good luck!

Currently struggling to remove one of the bolts on the new conrod. I've tried jumping on the torque wrench, hammering it, having two people try at once, spraying silicone lubricant, nothing. Impact drill is charging so I'll try that in a bit, but I'm a bit doubtful that'll work. If the engine...

I cleaned that out with some thin wire and poured a bunch of the old oil on the piston. Sure enough, was able to pull it out! Thanks for the advice!

Ohhh, is a carbon ridge the carbon buildup on the edges of the top of the cylinder?

Thanks for the advice! To clarify though, I'm reusing the piston so I'd like to do as little damage as possible. Excessive heating might not work well. I'll try shoving a ton of oil in it though, hopefully it works. The piston moves but I just can't push it out. I'll try this in a bit

I wouldn't doubt the previous owner tried running it on half diesel at one point lol. The conrod should arrive tomorrow, but I can't get the piston out. Any ideas?

Nah, I'm not really upset with B&H. It seems like the old owner didn't care for it very well, and it was 20 years old. We just needed something that could cut our lawn easily for a decent price. I've tore it apart and found the pieces of the conrod, just bought a new one. Hoping that fixes it...

Satisfied customer of you, unsatisfied customer of Briggs and Straton.

Yup. Split conrod.

Whelp, you were right. I finally took the engine apart a bit and discovered the piston no longer moves, but if I push it back manually it moves a tiny bit when spinning it. I also discovered the oil was very black, despite my initial findings. Last thing to do is check the crankcase and maybe...

I've got spark! But I think my old magneto may have been fine... I took off the carburetor today and sprayed starting fluid directly into the hole where the carburetor would connect. Ended up with a tiny fire and an engine that still showed no signs of life...

Will do, but for now I'll just be happy to get any spark at all...

Narrowed it down to the magneto, ordering a new one. Hope this fixes it, only thing that would make sense.

-It can't hurt removing the belt, I'll try that from now on -The starter motor is good: it spins, goes up when starting, and goes back down when off. -Unsure of the valve condition, will check -I think the con rod is fine, I can feel some compression and see the piston moving up and down. -The...

I was driving up a mild slope, but it was far under 15 degrees. I've made sure to clean the deck and belt area every other week, and made sure to do so before attempting to service. I can freely turn the belt by hand and the engine by hand, but I can try removing the belt if you think that'll...

I already got it spinning freely, sorry if I hadn't made that clear in the original post

Just remembered the engine is non-ohv, so it has no pushrods, right?

Will do soon, hoping this isn't the case. I assume if it is, then it's probably time to get a new mower.

Hi, my 2002 riding mower has a 13 horsepower B&S engine. It's been running fine and starting instantly. I shut it off and went to turn it on a minute later, and it refused to do anything. It wouldn't even spin. After turning it with a torque wrench for a bit, it became loose and spun easily. The...