2003 mercury bigfoot 50hp surging

turbo930ss

Cadet
Joined
Aug 21, 2010
Messages
9
Hi all,

I need help with my 2003 bigfoot. the engine was running great until I put new gas in from my gas jugs. The engine will run for a couple minutes then starts surgeing at low RPM. The throttle will still be full open, but the engine goes from idle to @ 1/2 full. It seem to be lacking fuel, I replaced the fuel filter with same result.

After if I pump up the fuel bulb or let the engine sit it will work for a short time @ 1minute before surging again.

Any help would be great.

Scott
 
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