I've been having trouble with my bike runing ok in the begining but then after 10 or less miles it starts bogging out until it quits and fouling plugs. I took to the local harley dealer and they cleaned and adjusted it for $225 and told me it was good to go. Well after about 10 miles same thing happens. I have them tow it back and this time they tell me it's too much carb for my bike and I need a new carb. I have a 1999 Sportster 883 converted to a 1200 with a S & S super E with straight shot 99 exhaust. I've asked around and everyone seems to think that something can be done witthout getting a new carb? Any suggestions?