Quote:
Originally Posted by J-Mech
Just tore down a K301 motor today with the same problem. Intake valve not seating in it. Exhaust was burnt too. Don't think that had anything to do with it being a slow cranker. But it was why it was puffing back through the carb. It too ran fine, but wouldn't start.
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Well I got a chance to give her the beans today making room for more snow and while she performed very good, she didn't do great. When I'd load that thrower up, she'd almost sputter. I took just the bowl off the carb today before I ran it and there was some gunk in the bottom, I'm guessing that from using brake/carb cleaner, it cleaned gunk off and ran down into the bowl

Anyway, I cleaned it out, put new fuel line on it, and fresh fuel. Could the intake valve not seating only cause a sputter a full throttle leaning hard on the governor? And just out of curiosity, more to confirm, the spark plug gap for this motor is .35, correct?
Edit: Now that I know how easy it is, I'm debating removing and cleaning the head up on the 14hp in the 129 and if the valve is suspect to not be seating right, figured I could clean it up while I'm in there.