1978 Johnson 35 h.p. bogs under load

joeg1ff

Recruit
Joined
Jul 16, 2012
Messages
1
Hello about a week ago i was driving my boat and it was running great. I came off of plain to stop for a second, when i started to idle my motor randomly shut off. After it stalled it would only start and run with the choke on. After i limped home i rebuilt the carb. Now it starts and idle great but when i get out to the river and give it full throttle it bogs down and doesnt want to get on plain. The primer bulb doesnt stay rock hard but this is expected after the fuel pump takes over i believe. Please any help would be appreciated!!!!
 

oldman570

Lieutenant Commander
Joined
Mar 25, 2011
Messages
1,615
Re: 1978 Johnson 35 h.p. bogs under load

heck the vent on the gas cap o be sure it is open and not creating a vacum in the gas tank. ou might also have slime and crud blocking the pickup in the tank and a pluged fuel filter on the fuel pump or in the gas hose if so equipped. The primer bulb is in the hose with the fuel flowing in the correct direction and is better if the hose dose not lay below the tank. JMO
Oldman5701
 
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