Author Topic: 88 KX 500 Exhaust valve timing(power valve) problems  (Read 1857 times)

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Madkawrider88

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88 KX 500 Exhaust valve timing(power valve) problems
« on: February 20, 2008, 02:28:27 PM »
Hello to all the Kawwie riders out their, I have an 88 KX 500 that I just got all back together. Im having a little trouble, I think my power valve timing is off antway the bike runs great up to 3/4 throttle then it just flattens out and wont pull any higher rmp. I have the jetting correct. when I put the exhaust valves in the timing marks didnt align as the sevice manual suggests. Has anyone experainced the same trouble. The top end is all the same from 86-88 anyone know how to test to se if there working properly?