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BillyTheKid45

Valve guide rebuild

3 posts in this topic

Hey guys,

I work on my own bike for routine maintenance and thought I was doing good. Then my bike started smoking like it was burning oil (blue smoke):ride: This would happen especially after doing a few wheelies. Took my '04 XR650L to the shop and they said I had one valve that had to be adjusted and now I need the valve guides redone b/c the bike failed a leak down test in the spark plug hole. They also did a compression test and it passed. It could be worse, at least the compression is good.

My question is what caused this :thumbsup: I don't want it to happen to me again. I know someone on TT has the answer :applause:

-Brad

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Oil starvation caused the brunt valve.

Long wheelies will starve the oil pickup and cause a lose of oil pressure to the head. Which valve was it?

I am not sure I would trust a regular shop to fix this problem. Send the head to Engine Dynamics, they will fix it correctly. The valve seats need to be recut when the valve guides are replaced.

MGS

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I think it was the right exhaust valve. They did tell me the head was sent off to the machine shop. MGS thanks for the info!

So I guess wheelies are ok just don't ride 'em for too long I'm selling my bike :thumbsup:

-Brad

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