ok if the plug is dry than the problem has to be in the carb......even if the bowl is full......if carb is working proper that plug should be wet............you cleaned the carb did you take all the jets out and run a wire thur all holes? did you use compressed air to blow thur every port, opening, jet,.......if not do so......one thing i have learned with these carbs is just your regular cleaning dosn,t cut it..............i take a lot of flack for this but in my opinion that carb is the weak link on the cart.......i almost concider it a throw away...............but hey thats just me............................