Quote:
Originally Posted by mojohn
I have a very similar problem with a 06 F115. It doesn’t seem to get up to full power so I went from a 17 pitch to a 15 and saw no change in WOT plus the engine crank case is filling up with gas ?. The Yamaha dealer tell me its my fault because I don’t run the engine hard enough. Any Ideals ??
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Your 06 F115 should be boken in by now so the ususal unseated rings can probably be ruled out. I have heard that to properly seat the rings that the engine should be run hard every now and then. Another item that could cause your "making oil" condition is the posibility of a thermostat stuck open. It's not uncommon. I would try new plugs and a new thermostat. It's been discusssed at length on other forums. Goos luck.