1985 Johnson 115 wont idle

bbfrs1

Petty Officer 3rd Class
Joined
Jul 8, 2009
Messages
86
I recently bought this motor from a Johnson dealer. It will idle and start only with the fast idle about half way up. It starts great with the fast idle up but when I try and put it in gear it dies. They told me to turn the idle up on it. I turned the idle screw all the way and it made no difference. I move the fast idle arm up and then the arms move. I told them that cables werent on correctly. But they don't agree. How would I go about fixing this. Btw compression is as follows 1.112 2. 103 3. 112 4. 103. They said these were acceptable but a little low.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: 1985 Johnson 115 wont idle

well get it running, then do a decarb, may bring low compression up. disconnect the cables, and set the idle with the motor in the water and in gear. once you have it idling properly, adjust you cables to match the motor. do not adjust the motor to match the cables, when connecting. controller in neutral, fast idle all the way down.
 
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