Oil But From Where?

Discussion in 'Technical Help' started by Ash34, May 6, 2017.

  1. There is oil lying behind the rear cylinder but where could it have come from. I can't see any obvious signs.

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  2. Is it from your crankcase breather?

    If you can bare it - once your engine is fully warmed up hold it at 8K or 9K RPM for a few seconds and see if it blows oil out, check also the hose connected to it
     
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  3. Crankcase breather would be my guess too:)
     
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  4. Is the breather on the other side?


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  5. It's on the right hand side sitting on the bike, look beyond the clutch. With luck, it's the hose to the breather leaking or the breather itself, other than that it could be leaking from the base of the rear cylinder barrel which is not unheard of.
     
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  6. Thanks. This and a huge misfiring around 7krpm are really p1ssing me off. It ruined my race on Friday.


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