84 Mecury 80 hp Thunderbolt

[joeshaver]

Can some one please help me? My boat will start up fineas long as it dont set for more than 30 min. then I have to pump the ball again is it supposed to be that way? and somrtimes it will run execlent most of the day and then will die when I floor it. It goes up to about 1800 rpm and then will die. But it starts right back up. Help

 

[latin monkey]

Re: 84 Mecury 80 hp Thunderbolt

how old is the fuel line and primer bulb? it could have a crack and sucking in air but i think you need to rebuild the fuel pump

 

[verado7]

Re: 84 Mecury 80 hp Thunderbolt

the primer bulb is the first suspect ( bad check valves leaking gas back into tank ) the fittings at the tank could also cuase this - the fitting at the engine wouldn't unless you had a bad bulb or see fuel leaking from the fitting at the engine

 

[joeshaver]

Re: 84 Mecury 80 hp Thunderbolt

Put new Fuel line on it. But mabey the Fuel pump. The mech. said it looked good bud did not run pressure test on it.