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Jim Dunn

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" Recent rebuild of both engin

" Recent rebuild of both engine and carbs(2),new coil,new wires, good spark. Starts right up,runs and idles fine but after a 3 mile idle through a local canal the plugs load up with carbon and it will hardly run. Any ideas? "
 
"Are the engines at running te

"Are the engines at running temperature? Are the chokes releasing fully? Do you see black smoke (even a little) when idling? If the engines are warmed up and the chokes are completely off, your low-speed mixture is likely too rich. Most carbs have adjuster screws for this purpose and it's a usual part of post-rebuild tuning.

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