50 HP Johnson fuel problem

Skate

Recruit
Joined
Mar 13, 2008
Messages
3
Hi Guys, I'm new at this so I will try to make sense of this problem!! I had some bad gas in my tank and ended up getting it all out and adding new fuel but from that time on I haven't been able to crank it with the gas line hooked up. If I disconnect the fuel line and take out the plugs and dry them off and turn the engine over with no plugs in it, fuel runs out the foot. The reason I take the plugs out is that they get very wet and need drying off. When I put the plugs in and try to start it, it will kick over once then the plugs are all wet and fuel continues to run out the foot. If I leave the motor sit for a few hours and disconnect the fuel line, the motor will start and run until the fuel runs out of the carbs etc., but if I hook the fuel line upwhile it is running, it will sputter and quit. Guys, I'm clueless on this one!! Can anyone give me any advice other than a new motor? Many thanks, Skate
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: 50 HP Johnson fuel problem

Either the floats are stuck in the carburetors or the fuel pump diaphragm is ruptured.
 

Skate

Recruit
Joined
Mar 13, 2008
Messages
3
Re: 50 HP Johnson fuel problem

Thanks F R I will check both items tommorrow and let you know what happens. Thank again, Skate
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: 50 HP Johnson fuel problem

I think F R nailed it. Your bad gas may have blocked the float needles from shutting off fuel pressure from the pump.
 
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