Rough Idle

[frenchy50]

I have a 1992 Johnson 40 hp that runs great except when idleing while in gear, ie trolling speed. Is this normal for a two stroke or is there some type of adjustment needed?

 

[tashasdaddy]

Re: Rough Idle

you could try cleaning the carb, and doing a link n sinc. there are no adjustments. you could also open your spark plug gap to .035 instead of .030.

 

[frenchy50]

Re: Rough Idle

Will try the gap and see what happens.
Buy cleaning carb do you mean spraying carb cleaner while running, or would a carb cleaner added to the fuel do the trick?

 

[Boss Hawg]

Re: Rough Idle

Will try the gap and see what happens.
Buy cleaning carb do you mean spraying carb cleaner while running, or would a carb cleaner added to the fuel do the trick?

Cleaning the carb means takeing it off & apart & cleaning
All the spray & in the tank does is help clean the jets somewhat

 

[frenchy50]

Re: Rough Idle

I got ya.
I think I will save that project for winter.