gravelynut
New User
Recently my Cub 108, old Faithful, wouldn't start. I gave it a thorough going over, including points, condenser, coil, and carb rebuild. Started right up, and ran smoothly, after a little carb adjustment. Drove it about for awhile, when it started to cut out, and backfire. Back in the garage it went. Thinking it was dirt in the tank, I took it off and cleaned it. Pulled the carb off, and checked it. It was fine. Pulled the head, off, valve seats, valves, cylinder walls and rings all looked good. Replaced the head, with a new gasket, a torqued it according to specs. After all this, the tractor starts right up, and idles, but carries on and backfires when you give it throttle. Opening the point gap all the way made it slightly better, but still is not right. What did I miss? Any input would be appreciated! Thanks for your time! (This has a Kohler 241.)