Johnson 1988 20 hp missing at mid throtle

ahollobaugh

Recruit
Joined
Jun 16, 2008
Messages
4
I have a 1988 20hp Johnson. Starts good, low idle good, wide open runs good. Anywhere in between it has a miss. If I run it a long time at wide open it seems to stop the missing for a while but will start back up. I rebuilt the carb over the winter. It was clean, the bowl gasket was broke. Is this a carb issue or do i have ignition problems. Any help appreciated. Adam
 
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