Motorcycle Questions? Ask a Mechanic.
Hi, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.Initially, it would appear to be an ECM issue; "...Spark yes...Fuel pressure yes but injector will not inject..."
Still, proposed preliminary checks (if have not been done) on suspects:
Based on the wiring diagram, yes. In the OFF position, the Engine Stop Switch switches the ECM's black/yellow wire to the black/white wire which is tied to the ground.
Appreciate the post back.
And considering all of the above, then the triggers to the ECM would be highly suspect.
Part of the ECM is a CDI circuit that fires the ignition coil and a processor that pulses the injectors. The trigger would be from the pulser coil co-located with the magneto circuit.
Test the Ω / resistance between the pickup coil's red and green wires. Then check for its output' low pulsating voltage when attempting to start.
Might as well do the exciter coil and stator coil too.
And yes please; an update when able.
I recall that this particular model has a tip-over (TO) sensor that auto cutoff fuel flow. Please check this also.
Agree; yes. The purpose is to cut off fuel flow if the bike is leaned too much or dropped.
Perhaps the article HERE can shed further insight.
Appreciate the update.
And based on all of the above, either an ECM or an injector issue.
A final test; temporarily disconnect the injector's green/white wire from the harness (to the ECM). Instead, connect a length of wire to the injector's green/white wire. While attempting to start, quickly/repeatedly scrape the other end of this wire against engine ground. The idea is to simulate a pulsating grounding of the green/white wire.
The expected result would be clicking/opening of the injector.
Is the spark consistent when kick starting?
In some instances, I use alligator clips with wires to test wire multiple ground connections or even wire end to end particularly with intermittent problems. Click HERE.