Motorcycle Questions? Ask a Mechanic.
Hi and welcome to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.
Initially, let's go back to check and review the basics. Proposed preliminary tries (even if have been done):
• re-inspect the battery, its ground lines and/or re-check and re-clean the battery cables + terminals, connectors and wiring;
• of particular interest would be the presence and consistency of IGN+12V on the red/white wires to the ignition coils;
• likewise check the relay assembly particularly the diodes.• consider to have the battery externally charged; and• then also have the battery LOAD TESTed (even if new/charged and just for the purpose of eliminating it as a suspect).
On the consistency of IGN+12V on the red/white wire, what is the voltage when:
These voltages would establish if an over voltage condition may be existing. It can also be due to an intermittent switching connection from the red wire to the brown wire and/or red/white wire thus the proposed test was for consistency and not only presence.
Additionally and as posted above, the diodes in the relay assembly may be affecting the igniter. These diodes would have to be check out-of-circuit for forward and reverse Ω values.
Appreciate your kind understanding.
The igniter has 2 wires feeding the relay assembly. Since the igniter, stator and rectifier/regulator has laready been changed + service fees paid but symptom persists, then it should be no additional cost just to checks the above readings.
Are you then considering a DIY (do-it-yourself) repair approach? If yes, do you have access to and familiar with a multi-meter?
Please click HERE.
And would appreciate an update when able.