Maintenance & Technical > KX500 Original

KX 500 Flat on Mid and top end

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lsampson:
Right, I Had It Backwards.  :|

motopunk:

--- Quote from: Motorrad on April 09, 2013, 04:05:58 PM ---
--- Quote from: lsampson on April 09, 2013, 04:00:45 PM ---I Will Understand More When I Read The Thread, But I Suspect The Shims Go At The BaSe Of The Drum Valves, Where They Rest In The Cylinder, And Move Them Down To Open Up The Center Valve More?

--- End quote ---

they go between the base gasket, and the alum piece's   to raise it all up

--- End quote ---

i did the same on my ´97 250 motor a few years ago, as i saw the hanging valves. at least at the dyno +1,5 hp more  = 47,5 hp on the rear wheel :-D 

for the older kx500 motors 86-88 were only the small holes in the base gasket. why they took bigger holes in base gasket of the newer kx- modells, i will not understand.

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