Ignition Problem. every once and a while like every other trip my motor will start and run fine but later on in the day it will lose fire.I have replaced everything inside the control box(excluding wire harness to motor). why does it lose fire all of a sudden.Electrical part breakdown. Do you know where I can get or can you send me the specs to test the ignition components.. Also can you hookup a tach to a nissan motor knowing it is a aftermarket tach.Example: I am trying to hookup a faria.I found ground and hot coming out of control box. But what color or where is the sender wire ? Thanx, aprreciate your help. 