My 12 HP Craftsman riding mower (Model 917.254551) will not start although the motor will crank. I have changed the battery, coil, and throttle cable. There doesn't appear to be any spark when testing at the spark plug. There are gas vapors when the air filter is removed and the engine cranked. What should I check in order to get a spark at the plug?
By William
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Valve seat may be loose or broken. Had this happen to me and everywhere I looked, the answer was "Flywheel key". my key was fine. Valve seat was off. Fixed and good to go.
I just got a 10 hp mower it ran at the house I got it at ran when I got home. I wash it and clean it all up. Started it and it ran for 30 feet and stop running.
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