Yamaha 90hp Mystery Fuel Leak

jriling

Cadet
Joined
Jun 20, 2005
Messages
17
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.
 

Ray Neudecker

Lieutenant Commander
Joined
May 25, 2004
Messages
1,656
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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