1977 Johnson 75 hp problems

Pharaoh

Cadet
Joined
Sep 19, 2010
Messages
14
Im having problems with my 77 johnson 75 hp stinger . At first it was surging and dieing at idle I ran a tank of seafoam through it and it seemed like it was running better at throttle it was fine but at idle it still died . I put a fresh tank of fuel in it hoping the reason it died at idle was the seafoam ? and at first it ran great went to idle no problem and also ran great under throttle then all of a sudden it started to bogg out and would only run with the choke pushed . Aftyer alittle bit on my way back to the dock it started to run without the choke but at full throttle it wasnt revin up only about half rpm's . Any ideas ?
 

BonairII

Commander
Joined
Jun 7, 2011
Messages
2,727
Re: 1977 Johnson 75 hp problems

Sounds like you need to do some thorough carb cleaning.
 
Top