HI SET UP your throttle so you have half throttle when the carb is half open-with end point (or atv ) be sure the carb is full open at full throttle-you should be able to cut the engine off by closing off the throttle trimon computer use the minus expotencial to slow the carbs movement to your personal liking-you did not have your throttle set as it s/bso i do see why it would be less than comfortable to run your engine ENJOY REGARDS TONY