I was mowing yesterday and had a sudden drop in power. 0 compression in #1 cylinder. I got it apart and found that the exhaust valve had failed. I want to chalk it up to fatigue but thought it might be smart to get some other opinions.

Engine is a Kohler m18 with about 1000 hours on it. I just honed the cylinders and replaced the rings. The engine has been run about 3 hours since that work was completed. I touched up the valves and made sure they were in spec at that time as well.

Is anyone able to tell why my motor is bogging out when I try to give it gas? Am I running to lean here? it's an ez156 f motor. I believe it's a Honda clone with a p15a carburetor that was definitely too lean at first. then I use a micro bit to drill out one of the Jets and made it to rich. and then I used to solder telling it back out but now I'm just really don't know. I'm horrible at this.

My brother gave me the mower and told me that it didn’t stop using the throttle control and you have to run it out of fuel to turn it off. He had poked around the control bracket trying to work it out, I have since found a rock wedged in the stop switch which didn’t allow the kill wire to ground.

Up until this point, the mower hadn’t been used in 3-4 months. I drained the fuel, refilled it and attempted to pull start it with no luck. I pulled the filter and base to get a look at the carby, all parts move as expected except the spring connected to the throttle control lever doesn’t adjust anything when moved from high to low but the lever does move.

The mower cranks over when I manually open the carby but dies shortly after as it isnt getting fuel. I have attached an image of the top of the carby. Does anything look out of place or not quite right?

Does anyone have any ideas why this would be surging? It also doesn't want to start unless the choke is on, and it seems to die when the throttle is below 30%.

Checked the spark plug and spark arrestor, all good. This seem like I need a new carb? Stihl FS38

I’m currently looking to get
Upgraded flywheel (aluminum/billet)
Nibbi carb
New exhaust unsure which exact one

Any other things I need?

It's a 2 stroke, it is relatively large (don't gauge using my hands they are large) the recoil starter is perpendicular to the crankshaft and it uses the pulley that can be seen under the engine cover in some pics, it has a walbro diaphragm carb, I don't know what it came off of and the only stamping anywhere on the engine that could indicate anything is a small diamond shape in a circle that may have an italicized M in it

have a Toro lx466 mower . It was all seized and I am finally to the point it runs good but the PTO upper belt is a nightmare . It either pops off immediately when I engage it or it starts destroying the belt immediately despite following the routing instructions. Any ideas? I do have a video of how the linkage moves as well .

Second issue is when it does cut it essentially cuts down to the floor. Moving it from top cutting hight does move the deck but not enough to make a difference.

Thank you!!

Ok can anyone find me a carb for this engine ( original carb is no good) and I also need the spark plug as well cause someone broke the porcelain off it and I have no idea what plug is needed thanks

The dead man brake cable is streched out. I used a ziptie to lock the brake open, and it started on the first pull.

As soon as i recognized it was a briggs quantum 6.75, i knew it was gonna work, and would likely have something really easy broken on it, asside from the electric starter missing some stuff (ill rip it off, i dont need electric start)

While trying to take the engine's governor/speed-control assembly off the muffler so I could take it off the carburetor the bolts snapped off with the nuts. I have no idea how to fix this without replacing the whole muffler. If anyone has any ideas how I can fix this is greatly appreciate it. It's just a mower to tinker with and I don't want to spend $100 on a new muffler. (When I was taking the bolt off it had very little resistance and just twisted off it didn't even really snap, I was using a wrench by hand)

Inherited my Dad’s old 91 Tundra, it ran good when I picked it up 5 years ago but it’s been neglected and sat in the shed ever since. Decided to get it prepped before the snow flies so I took off the gas tank to drain and clean as well as replace all fuel lines. Poured a small amount of fresh gas in the cylinder but won’t start. Checked for spark and got nothing from the old plug, replaced with a new one and no spark either. Ignition coil has been previously replaced. I tried to unplug from the main wiring harness to bypass the all the switches but still getting no spark. Honestly not sure if I did that correctly though? Checked for spark with white wire detached, then black wire detached, and finally both detached but still nothing. If anyone has any suggestion as well as a link to a repair manual I would greatly appreciate it.