Leaking Gas in Water – 1995 40HP Mercury

[Somethings-up]

Gents,
I have a 1995 40HP 4 cylinder oil injected Mercury – on the initial outing I identified two problems:

1. A small gas/oil pool when the motor stops – about 4 tablespoons
2. The engine floods easily, even when warm

I am not a motor guy but suspect the engine is running rich – is there a way to lean-out the motor or is this just how it is with older carburetor outboards? I bought this for fishing on pristine lakes and this is really a problem – even thinking of re-powering with a CARB compliant motor. Any suggestions? Will a user-manual help? Please keep any suggestions simple. Thanks.

 

[Texasmark]

Sounds like the needle valve in the carb is not shutting off the fuel. Either bad valve or float malfunctioning or incorrectly set. Get a carb kit(s) and install. Site has them or look up Sierra after market.

Mark