Question about 1990 kawasaki GPX 750 R
This engine is in a off road go kart I recently purchased, and I have no experience with 4 stroke motorcycle engines. Believe the doner bike was a early 90's GPX750 - Cam timing chain in center of block.
Problem is that when attempting to start, the engine turns over but about every 10 seconds of cranking there is a loud backfire, nice flame from exhaust and no ignition.
After pulling the alternator off, found that the belt was split, could this create the symptoms above?
Spoke to a local mechanic and he seemed to think the problem was ignition timing, perhaps a sheared keyway - cant seem to locate a manual to assist and the couple of Kawasaki dealers in my area say the motor is to old for them to assist.
Any pointers would be a great help.
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Posted on Jan 02, 2017
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