Re: Engine turns over slow if at all
Yanking heads will not fix this. Fuel in the crankcase comes from the carb fuel bowl leaking into the intake manifold and around some open valves then seeping past the rings, or from a failed mechanical fuel pump dumping directly into the crankcase. You say you have an electric fuel pump so that leaves only the carb. It can be too full, maybe the needle/seat cannot seal against the pressure from the fuel pump and leak fuel in and it overflows into the carb bore after it has been run. A carb can also leak from the bottom, some models have plugs in the bottom of their carb bowls, those are just glued in and can leak after a while.
Can you see any fuel seeping out from the butterfly plate shaft bushings?
Yanking heads will not fix this. Fuel in the crankcase comes from the carb fuel bowl leaking into the intake manifold and around some open valves then seeping past the rings, or from a failed mechanical fuel pump dumping directly into the crankcase. You say you have an electric fuel pump so that leaves only the carb. It can be too full, maybe the needle/seat cannot seal against the pressure from the fuel pump and leak fuel in and it overflows into the carb bore after it has been run. A carb can also leak from the bottom, some models have plugs in the bottom of their carb bowls, those are just glued in and can leak after a while.
Can you see any fuel seeping out from the butterfly plate shaft bushings?