mixture oil leaks from reservoir thru bottom carburator on 50 hp mercury

barglow

Cadet
Joined
May 11, 2011
Messages
7
I have bayliner boat 2000 with 50 hp outboard mercury motor. Suddenly i noticed mixture oil only leak from bottom carburator . It is a gravity leak, meaning if i raise motor it leaks more. I suspect something got stuck & dont shut off oil flow. What is responsible for shutting down oil before gets mixed from reservoir while motor is off? Please help me diagnose this problem.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,145
Re: mixture oil leaks from reservoir thru bottom carburator on 50 hp mercury

Is it just oil or is is gasoline/oil mix? If a mix, it is likely the inlet needle is sticking or the float is defective in the bottom carb.
 

barglow

Cadet
Joined
May 11, 2011
Messages
7
Re: mixture oil leaks from reservoir thru bottom carburator on 50 hp mercury

it is just plain oil
 
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