Maintenance & Technical > KX500 Original

86 kx500 resurrection

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harveson1:
Well she's a runner!!! Tom Morgan of Tom Morgan Racing cut the head actually increasing the volume. Tom knew exactly what to do and gave great service. I have posted pictures of the head before and after. I also had to change the timing rotating the stator plate clockwise. Thanks for your help sandblaster!

harveson1:
Just an update. I think the true problem with starting the kx500 was me. I was not getting a true reading on compression until I was able to kick it hard enough to get 2 pops of the reed valve. Thats the best way I can explain it. My compression was at best 120lbs until I heard two pops from the reed valve when I kicked it, and then the compression jumped to 150lbs. I am 190lbs with skinny but nice legs.
Other things. I had the oil drain plug welded to repair. I replaced the triple tree fork clamps due to the stop being sheared off.  Seems like this is a common problem. I also had to build a bracket for the exhaust due to the mount being destroyed. I cut the exhaust down to fit the bike since it has an fmf gnarley exhaust that was not made for the 1986 kx500. The 1986 kx500 is a challenge to rebuild just from a lack of parts stand point. She is getting close. Just thought since this site has helped me I would do my part to contribute.

harveson1:
Photos

harveson1:
Triple tree

harveson1:
oil drain repair

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