Motorcycle Questions? Ask a Mechanic.
Hi, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.Initially, attempt to start again with the clutch lever pulled in and the side stand folded up.
Still, let's try and review the basics. Proposed preliminary checks (if have not been done) on suspects:
All others would require the use of a volt/multi-meter.
Is there spark at the plugs when attempting to start?
This would explain the backfire; no spark when attempting to start BUT there is a single spark when turning on; i.e. ignition system is not functioning.
Let's try work on the easy to reach suspects first / back to the side stand switch; locate this switch and for test purposes, ground the gray wire to the engine. Attempt to start / check for spark.
If still not corrective, then a volt/multi-meter would be needed for all other tests.