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Old August 5th, 2007, 02:10 PM
jriling jriling is offline
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Default Yamaha 90hp Mystery Fuel Leak

Hey Guys:
1987 Yamaha 90, I have gas leaking from somewhere under the powerhead, I pulled the aprons off and the gas is coming from behind and above the front apron. Is this the main crankcase seal going? Anything I can "tghten up" to stop this?
I have no other visible leaks, carbs, intake manifold are all dry.
Any help is appreciated!

Jay R.
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Old August 5th, 2007, 11:18 PM
jriling jriling is offline
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Smile Re: Yamaha 90hp Mystery Fuel Leak

Anybody?
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Old August 5th, 2007, 11:58 PM
Ray Neudecker Ray Neudecker is offline
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Default Re: Yamaha 90hp Mystery Fuel Leak

Only so many places fuel can come from, The fuel system itself such as a leaking hose,(including recirc lines) carb, ect or the crankcase it self. If it is not one of the first no easy cure.
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Old August 7th, 2007, 02:20 AM
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JUSTINTIME JUSTINTIME is offline
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Default Re: Yamaha 90hp Mystery Fuel Leak

pics would help
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