two possibilities I can think off. Not So Good and Bad.
Not so Good
Too much oil in the system... sometimes as the bike ages the ball and spring that seals the oil feed ....
See page 32
http://www.xt600.de/xt_werkstatt/%2B...-600-83-89.pdf
check parts 22 and 23.
...just behind the oil pump. Oil pump pressure opens against spring pressure allowing oil to flow. If this has fouled, or the spring is weak, oil will flow into the sump. It's not a major biggie though, but it does make checking oil level a PITA with a tendancy to overfill. Of more concern would be a blocked oil filter
Bad
Your rings might be blown creating to much blowback crank pressure.
Last edited by bruken; 18 Apr 2008 at 16:59.
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