[wizard]

Hmmmmmmm,

Just the reverse problem with my 750. Run so rich out of the box your eyes would water a block away with soot out the sidepipes. 2 buddies with 600's with the same symtom. Have leaned mine down 2 steps and then got the hesitation. I believe it has to do with the transition circuit. Am going to try an old trick after I pull the carb and check the butterfly position at idle. Two thirds of the idle opening should be exosed. If not a 3/32 hole through each butterfly is supposed to fix that.

** Someone stop me if they've been down this road. **