Maintenance & Technical > KX500 Original

Kx project

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b0dem:
MAn I was looking at the pipe lastnight, because at low rpm`s it makes a nasty rattling sound. And when I looked at the pip only springs were connecting it to the engine, is that normal?
Will wd and steel wool take some of the rust off?

hughes:
Steel wool and wd-40 will take the rust off. The rattle sound you here is because the crush washer(cooper washer) between the pipe and cylinder it crushed or missing. A new crush washer and new springs plus 0-rings alittle high temp rtv silcone around the 0-rings and the sound will be gone. Yes, it normal for the springs to hold the pipe in the cylinder. The vibs are to bad to have a joint there that would require it to be bolted with bolts or locking nuts.


Check all the pipe mount to make sure they are not broken. The one under the gas tank breaks all the time.

b0dem:
Ya the one under the tank is broken Im gonna mess with it later. It just rained here so im gonna go play around.

socal_rider:
You have got to stretch the heck out of the seat cover.  Use a heat gun and don't give up!

Nice bike!

Spider:
Mine rattled when I first got it. Replacing the O rings did the trick. Later we replaced the upper mount with a larger one. The upper mount seems to be a weak link. It took me three trys to get my new seat cover tight.

Dale

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