Maintenance & Technical > KX500 Original

640cc KX

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nasty22:
I am new to this site and it is so awsome to know there are others in the universe who worship the K5 gods.I built a quad with an '86 KX500 engine but the vibes were too much.I am learning on this site that if your crank is worn then you get excess vibes. My cylinder had been redone with a borable liner that I later found out was a mistake.I need a crank and had considered a big bore and stroker crank with balancing.I wonder if it would hold up to MX in a quad.Not run hot and such.I need big power to punish those CRF powered quads.

orderofsion:
Hi there nasty22. I have heard that quads have a harder time with vibration compared to bikes because the engine vibes make the bike dance about the 4 wheels . There is a company in the states that makes a bolt on balancer shaft for excatly that problem to fit at least some mega 2/strokes . I will try to find their web address from my old paper records and post it a.s.a.p.

kaw rider:
how are these motor holding up to the stroker cranks.

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