18hp kohler modelM18QS

SCOTTY3HOT

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Jun 13, 2013
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YES I HAVE A TORO PRO LINE 118 WITH A 18 HP MAG. MOTOR MOWER QUIT RUNNING WENT TO START IT BACK UP AND IT WANTED TO START BUT IT SRARTED BACKFIRING TOOK THE PLUGS OUT ,GOT FIRE WENT TO SEE IF I HAD ANY COMPRESSION AND NOTICED VALVE WAS NOT CLOSING WHEN I TURNED THE MOTOR OVER ,MOTOR TURNED OVER REAL FAST,IS THERE A REASON THE VALVES DON'T CLOSE , LIKE IT MAY HAVE JUMPED TIME OR SOMETHING could the keyway be shered
 
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