Merc carb drips gas

svxd11

Cadet
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May 27, 2005
Messages
14
The carb on my 1995 30 hp mercury serial # OG140108 has been dripping gas from the intake every time the engine is shutdown (only at shutdown). It will drip about 25-30 drops in about as many seconds and then stop. This happens every time the motor is turned off. The motor runs fine from idle to half throttle but sputters at full throttle after only a few seconds at top speed. When the throttle is backed off to half or less it will run smooth.
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: Merc carb drips gas

Sounds like the float level is to high causeing the engine to flood a little
 

svxd11

Cadet
Joined
May 27, 2005
Messages
14
Re: Merc carb drips gas

Should I bend the small metal tab at the needle valve? what is the correct setting (9/16"?)
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: Merc carb drips gas

Yes, bend the tab it should be 9/64 in. from the bottom of the float to the carb casting where bowl seats
 
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