I posted about this last summer and have finally had time to jump back into it again.
Currently the bike is only getting a weak spark on the #2 cylinder, here is what I have done.
Checked primary voltage to the coils, #1,3,4 are at 7 volts, #2 is at 12volts
Checked continuity on all grounds from the coils to the CDI/Ground ect. Pinned out every wire from the CDI to the coils and checked resistance.
Swapped ECU/CDI unit to troubleshoot.
Changed Impulse generator,
Changed Stator
New Battery
Jumped bike tip over switch.
jumped clutch switch
jumped kill switch
jumped kick-stand switch.
I unplugged every connector on the harness, sanded, cleaned and dielectric greased every terminal.
Unhooked every ground I could find and sanded, greased and re-attached.
When I key on the fuel pump primes and when I turn it over I can see the injectors spraying so that system is good.
Checked the spark plugs and swapped coils. What ever coil is at the #2 location gets a crappy orange spark so it isn't the coils.
I did find one person located in the UK who had this same problem. I tracked him down via facebook to ask the question but never heard back. Does anyone have any idea how this can be fixed?
Thanks