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Mend Craftsman 917.271450 Mower Engine Horsepower

how can i fix riding mower?

i have a craftsman riding mower 12 horse power briggs and staton will not start but does cranks floods easy cleaned plug and fouls again.if i take air cleaner off and crank,it backfiers,if it were a car i would think the timing is off.thanks for any help

tom mcnally
July 2005
I took the head off and found the intake valve seat had popped out and held the valve up.I reinstalled the seat put it altogether and it runs fine

tom mcnally
September 2005
Wow! I seem to be having the same problem with my 15.5 hp Briggs and Stratton OHV on a Craftsman riding mower. I did find that my Timing key was sheared and my flywheel was cracked around that timing key slot. I think the backfiring could have caused most of that. But I'm still stuck to trying to get it running again. Biggest piece of s**t mower I've ever bought.

Tim
July 2005

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