I have an OS 55 AX. Im having trouble when going from idle to full throttle. It wants to die or hesitate before spooling up. Ive run about 6-7 tanks of fuel through the motor. I was told to turn in (lean up) the mixture control, I turned it in almost a quarter of a turn and this did help some but, Im still getting the some hesitation and also a very very wet puddle from the exhaust. This would seem to still be rich but Im afraid of over heating the motor. I have the needle set at out about 2.25 turns which is per the manual. Thanks for any helps or tips.