Maintenance & Technical > KX500 Original

Tiger in the cylinder.........

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demographic:

--- Quote from: vmxguy25 --- First, if your engine has a lot of time on it, the noise could be coming from the upper exhaust powervalve.  If this is worn a bit, it may rattle with the larger exhaust pulses produced by the KX5.
--- End quote ---


I was going to post a question about this exact noise as I have a fresh piston in mine and the crank bearings are good as is the piston to bore clearance but I know there is some wear on the powervalve rack and pinion gear.
I now think you have cleared up what the noise is :D

It was a very good first post, Ta muchly :)

Regards, Scott

DrMojo:
Gary,

Thanks for your comments.  The info is very helpful.  By the way....welcome to the KX crew........ 8)

Al

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