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1998 120hp Force

mar523

New member
I have a 98 120hp force engine

I have a 98 120hp force engine. Ran fine so far all season. I spent two day steaming around the Chesapeake on it. I seem to have and issue when I try to return to idle after 1/4 or more throttle the engine takes a min or so to return to idle. It kind of runs on and stays at 12-1300 rmp. I'm thinking alittle carbon build up. Any other ideas. It idles and runs perfect after it gets settled down.
 
"Sounds like a small vacuum le

"Sounds like a small vacuum leak. Would look round the recirculating plates and induction blocks. Next the carb and reed mounts for loose fasteners. If not there, you may be running a little rich and the recirculating system is over burden. Try adjusting idle mixture down a little."
 
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