So I wanted to try messing around with the NIKKI carb since I have a vacuum gauge and thought it might be a good idea to do a little tuning... I have no tachometer available but I also did not want to spend too much on one since it would only be used for tuning purposes at this time. I ended up purchasing a cheap inductive tachometer and it works great!
My problem at the moment is that I need to know which setting on the tach is correct for the E1 motor.
My options on the tach are:
#1 - Spark plug firing twice per revolution
#2 - Spark plug firing once per revolution
#3 - Spark plug firing once per two revolutions
I guess I'm confused partly because I'm not sure what is considered a revolution? Is it the entire cycle from intake to exhaust? Or is the intake/compression and power/exhaust stroke both considered each a revolution? I've also read a little bit on wasted sparks which confuses me even more.
Any thoughts?