03 Kx 125 Cleaning the powervalve

Hey everybody,

This is my first bike/machine with a powervalve. I was wondering how often you guys clean your valves, and if you can do it without pulling the cylinder off? Also I know from experience on Honda cr 250's you can pull a cover off to make sure the valve is opening and closing correctly. Is there any way to do this on a Kx 125?


I clean mine everytime I replace the piston and or rings. To throughly clean it you need to remove the cylinder.

No reason to clean it between rebuilds, these bikes need rebuilds so often that there is no time for much stuff to build up. They even stay relatively clean even when using a gummy oil like castor 927.

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