ORIGINAL: AnAlternateEgo
Are there any major differences in tuning 4-stroke engines? Would i already be competent enough to tune one?
The major difference is in properly setting the high speed needle. On a 2 stroke it can be done by ear most of the time as we can hear the difference in pitch as the engines speeds up or slows down. Not so with a 4 stroke. To properly set the high speed needle a tachometer is needed.