1995 150 Johnson fuel delivery problem

danlovern

Recruit
Joined
Sep 28, 2003
Messages
1
At wide-open throtle the engine will suddenly loose power. If you back off the gas it will pick back up. If not, it shuts off completely but it will start right back up and run fine as long as it's not wide open. I have ruled out the gas tank itself so what do I check next? All the gas lines are the correct size.<br />No Alarms; NO Restrictions; I'm thinking fuel VRO pump or some kind of diaphram problem. Are there any diaphrams that are not in the fuel pump itself? The Primer Bulb is brand new.
 

ezeke

Supreme Mariner
Joined
Sep 19, 2003
Messages
12,532
Re: 1995 150 Johnson fuel delivery problem

Fuel starved - are you using the larger fuel line?
 

clanton

Rear Admiral
Joined
Jul 9, 2001
Messages
4,876
Re: 1995 150 Johnson fuel delivery problem

Are you getting check engine light and alarm, or any kind of alarm? Fuel restriction that large should set the alarm.
 

R.Johnson

Rear Admiral
Joined
Sep 24, 2003
Messages
4,446
Re: 1995 150 Johnson fuel delivery problem

The check valve in the primer bulb could have come apart.
 
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