Uh oh... Burning oil. Thoughts?


2 replies to this topic
  • Rot Box

Posted April 30, 2012 - 08:29 AM

#1

The last couple of rides my 02 426 has been burning oil when I start it up cold. It stops burning oil after about a minute of idling and won't burn any for the rest of the day. Any ideas? Given the fact I don't know the history of the bike is this a good time to pull it down and replace everything? It runs very strong and seems to have great compression. What would you do? Thanks,

Andrew

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  • Pooley

Posted April 30, 2012 - 03:10 PM

#2

Valve stem seals. This happened to me a few years ago, and the top end oil seeped past the seals into the piston, and was only noticable during startup. I changed the valve stem seals and immediately the problem went away.

  • Rot Box

Posted May 02, 2012 - 08:52 PM

#3

Thanks for the reply :banghead: Makes sense to me. I guess now is a good time to pull it all down and see how the piston and valve seats look.

Andrew




 
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