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Kawasaki MX & Off-Road Dirt Bikes
Son's 02 KX65 Rod Seize! Advice?
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[QUOTE="GKKarns, post: 287069, member: 27446"] Hey mk, haveyou split the cases yet? I'm curious as to what you have found. Did the bike have an abnormal vibration while running that rose and fell with rpm of the engine? Which ball bearing on the crank turned blue,flywheel sideor clutch side and what does the top wristpin look like. get a magnifying glass and and look for brinnelling patterns. the lower end rod bearing will mimick what the wrist pin looks like.if you see brinneling patterns heavier on one side it could mean that the crank is tipped in the cases. How big is the step? you should be able to measure it with a decent set of calipers depth mike etc. It's also possible that one of the ballbearings had some run out I have seen this before it doesn't happen often but it does happen. I've never had a problem with the ones that I have done. But I have redone a few shops work on this model and the kx60's. These bikes it is very easy to pinch the crank between the bearings and preload them, which for their application is a no no. Being a brand new bik I doubt that the cases are mismatched. You need to look hard and determine which bearing failed first and why the others failed as a result of the one that failed first. As long as the bearing locations in the crank halves are in the same axis, the base surface for the cylinder can be fixed.It's hard to trouble shoot without seeing it right in front you. hope this helps. Garret [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
Son's 02 KX65 Rod Seize! Advice?
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