k341 starting issues

[Mike 0]

I sold a 916h to my neighbor last year ran sweet till now. good spark, good fuel. won't run even if you put gas in the cylinder, just get a backfire. I'm guessing a valve issue or crank timing, can you sheer a key on kohlers?

Neighbor told me when it quit, it started sputtering and lost about 1/2 power then died. In the past if that happened I cleaned the points and that fixed it. This also happened after running fuel dry when hot.

Thanks for any insights

[BLT 718]

Condensor maybe?

[Mike 0]

found the problem, what would cause this?

[Gary 101]

Looks like a small nut/screw went through the carb/intake manifold and into the cylinder. (at least from what I can see)

[maxwood 596]

Maybe a screw from carburetor throttle or choke shaft??

I have seen that before.

Thanks, Ken in Mi

[Mike 0]

Amazing that it didn't hurt the cylinder at all, standard piston so the motor has hope.