Marine: Boating, Sailing, PWC, GPS and Navigation - Oil Leak

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Ranger373
08-11-09, 11:08 AM
I have a 1988 Yamaha Pro V 150. When it is in my driveway oil leaks out. I have removed the cowling but can not find the leak. Any ideas where the oil is leaking from?

samuari
08-11-09, 07:35 PM
It can come from the carbs, once the motor is tilted they are no longer level so some will leak into the air box.

Another thing to check is the rubber cap on the oil resivor.
Ranger373
08-12-09, 02:40 PM
Thank you for the response. The cap is on tight and does not show any signs of a leak. The motor has never shown any signs of an oil leak until recently. It does appear to be at the carburators, but even happens if the motor is left down.