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I replaced the carb on the engine with #791230 which solved the problem of white exhaust smoke. Now the engine pops at higher RPM's and am thinking that I got a bad carb. The valve backlash has been set, compression is 140 lbs in both cylinders, coil gaps set, fuel filter replaced, spark plugs...

I replaced the Briggs (Husqvarna( 2 barrel carb with a new one and it stopped the white exhaust smoke problem BUT, it now pops or has subdued backfiring when running at higher RPMs. The carb from Amazon is a 791230 that does not have any adjustments other than the idle screw. Does anyone have a...