I just finished breaking in my OS .12 CVR engine. I was noticing that the car is a little sluggish and it sounded rich (according to RCCA). So I leaned it out about 1/8th of a turn. (this is after about 6-7 tanks of break in)
I noticed an increase of speed, but almost NO visible smoke is coming out of the tuned pipe. I am concerned that I leaned it out too fast, and too much.
I am new to nitro, and I have yet to get an ear for tuning nitro. Can anyone here tell me what I did, or am doing, wrong?