75 hp Force

wvcatfish

Seaman Apprentice
Joined
Dec 3, 2010
Messages
32
My engine runs good at 3/4 of a throttle no miss but when I open it wide open it has a miss to it . it will run fine be going along at a good clip then miss then pick back up. I have replaced the fuel lien and primer bulb and put a new fuel filter in. the primer bulb will not get hard when you pump it.you can pump and pump .what could cause this? it has to be a fuel issue. it starts right away no problems.
 
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