The three Fs.
Fuel
Fire
Function
Check each one.
In the most basic form, the coil will release a spark if the negative side is grounded for a moment. There must be at least 8v at the positive side. Fuel should be seen if the throttle is pulled back and the rotor should turn of the crank turns.
I do not want you to think I am making trivia of your problem, but sometimes the simplest of things are the reasons for challenges such as these.
Can you perform a process of elimination? Remove things or bypass things to make it as simple as possible?
