1986 Johnson 110 hp.. has rough idle any ideas how to fix a misfire?

Rottkampo

Cadet
Joined
Jun 6, 2011
Messages
13
Hi.. It never ends.. I have this 110 Johnson and having an idle problem.. It feels like it has a miss... It is very smooth running at high rev. it seems fine ...Only at low end it has the miss... Any ideas for this problem.. Thanks Wayne
 

emdsapmgr

Supreme Mariner
Joined
Dec 9, 2005
Messages
11,551
Re: 1986 Johnson 110 hp.. has rough idle any ideas how to fix a misfire?

Is your idle miss a lean sneeze? A miss every few seconds-like a cough? If so, it's a carb problem, not ignition. You may need to tear into your carbs and clean the passages inside with a carb cleaner product. The lean sneeze is only an idle issue. Does not explain any high speed problem.
 
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