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1991 Johnson 60hp Stumbling

R

renvette

Member
"I have replaced the plugs, fu

"I have replaced the plugs, fuel filter, fuel pump and used a new portable tank, line and bulb, but my engine stumbles around 25mph and up. Could there be a problem with one or more of the coils? Any and all input greatly appreciated."
 
Timing or fuel delivery would

Timing or fuel delivery would be my guess fuel pump/filter. air inlines.water in gas.improper timing.carb adj.stale fuel.improper plugs.high speed orifice plugged.etc. Cdi ignition parts last that would be my last educated guess
 
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