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199092 100Hp 22

bucky_the_dog

New member
"The motor has a rough Idle, w

"The motor has a rough Idle, will run on the choke but will not surpass the 1800ish RPM switchover from 2 cyl. to 4,the rpm,s sometimes will surge(like it was cleaning itself out then will hiccup and start to stall). Rebuilt the fuel pump, did all the obvious stuff, filters, primer bulb, checked for air leaks,changed fuel connector, flushed tank, new spark plugs. I am now cleaning the carbs???
Is there somthing else that helps the engine switch over from 2 to 4 other than the carb circuits themself such as a switch or pump that may be faulty?"
 
"You might try looking for spa

"You might try looking for spark leakage from the high tension leads...I have the same motor and new plug wires made a significant difference...I assume you have a manual and have taken a compression test, synched the carb linkage and adjusted the timing to specs"
 
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