HI, as fairly new heli flier myself,I do know that you need your engine producing a lot of smoke to ensure proper cooling,provided you are using castor oil based fuel,as for your uncontrolled spinning,I would check and see for sure that your gyro is working and set in the proper direction,also sometimes if your engine is not running right and is missing it will affect you how your heli will dance around. If you are in a RICH 2 stroke it should be in the ball park,just my thoughts on your problem and what i would look at