Well, the starting belt was cracked, and finally broke. That caused me to replace it, which involves removing the needle, muffler, and dropping the motor about 2". The removal of the needle is where I should have paid more attention. I just unscrewed it, and did what I had to do for the belt. I should have paid attention to how many rotations it took to get the needle out, and then replaced it with the same number of rotations, and the mix would have at least been close. As it is now, I am starting from scratch trying to get the mix just right.

BTW, it is an Enya Super Sport 35 Heli. in a Shuttle ZX with a JR NEJ-120S Gyro, and JR XF622 6-Channel Radio.