well.. 1st off... try to tighten down the the nut for the acc. pump on the primary side untill the pump arm has the most travel...I had to tighten the nut on mine aways to get the most travel....but no slop in the linkage.. as for the Acc. pump cam.. if you look on the throttle linkage on the carb.. there is a screw, the 2 holes are numbered... mine worked the best with a black cam on the #1 hole... the cam assortment is only a few bucks...
a few things you might want to get for the carb if you havent is the quick change secondary spring kit and the conversion to jets on the secondary side... that way you can change the jetting all the way around....
also... make sure the float level isnt to high and check the timing..
both of those could cause probs too ;-)
whew... ;-)
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