Inliners International Forums General Discussion Engines 500 CFM Too Much Carb for 292?

Mike, We tweaked with the float bowl levels today and got some indication we were going in the right direction, but ran out of area to bend in. In my next maintenence session I will try changing out to leaner jets and needles. At least it's not a vacuum leak. A quick bugspray of carb cleaner on the intake/head junctions yeilded no RPM increase. Timing is harder to hit than on a stock-built engine. And I'm thinking that all this trouble started after I changed out the hot plugs [#4405] to one range colder Champs [#4404].