i have a 97 stx 1100 it boggs down when full throttle if you let off the throttle for a split second and gun it again it takes right off.. the carbs were rebuilt because the last owner let gas sit in the tank and carbs for a few years.. so i sucked the old fuel out of the tank and checked compresion it 110 in each cyl and put new plugs, fuel lines, and new filter.. what can i try next please help????