Joined
·
184 Posts
I'm stumped.
Re-assembling 650 after CVT overhaul (shredded nylon gears), all necessary components re-connected for starting test.
Starter mother as healthy crank, small puff at muffler with each crank. Won't start up. Re- checked all connectors, wiring harness for pinching, removed air filter (was dark). Installed new plugs, Tested plugs against case, spark with each crank.
Checked for positive fuel pressure at throttle body fuel hose connector (splash) it was positive.
Battery on tender, batt does not seem to hold a charge, though systems operate normally otherwise when on tender.
Tank has a gallon of gas in it, engine, transmission oil, coolant all replenished upon re-assembly.
Of course you say.. You took it all apart and now it doesn't work, duh! I think I did a good job, not too many roadblocks along the way.
I think next I will remove air box and the intake over the throttle body and re-seat everything, the manual suggests that there could be a number of thongs wrong, however since this bike started and ran (in 1st gear) when we first put it on the lift back in September, I'm inclined to think it be a connector than a failed sensor or ECM.
After that I will try testing sensors with a meter - need the right kind of probes for that, anyone have experience checking ECM voltages, sensor resistance etc. ??
I do think the bike did throw an FI when it first failed, I wasn't riding it (belongs to busa member yadayada) so there's a possibility that it might be fuel injection related. Isn't there a way to bridge pins in the service connector to show codes or something?
Re-assembling 650 after CVT overhaul (shredded nylon gears), all necessary components re-connected for starting test.
Starter mother as healthy crank, small puff at muffler with each crank. Won't start up. Re- checked all connectors, wiring harness for pinching, removed air filter (was dark). Installed new plugs, Tested plugs against case, spark with each crank.
Checked for positive fuel pressure at throttle body fuel hose connector (splash) it was positive.
Battery on tender, batt does not seem to hold a charge, though systems operate normally otherwise when on tender.
Tank has a gallon of gas in it, engine, transmission oil, coolant all replenished upon re-assembly.
Of course you say.. You took it all apart and now it doesn't work, duh! I think I did a good job, not too many roadblocks along the way.
I think next I will remove air box and the intake over the throttle body and re-seat everything, the manual suggests that there could be a number of thongs wrong, however since this bike started and ran (in 1st gear) when we first put it on the lift back in September, I'm inclined to think it be a connector than a failed sensor or ECM.
After that I will try testing sensors with a meter - need the right kind of probes for that, anyone have experience checking ECM voltages, sensor resistance etc. ??
I do think the bike did throw an FI when it first failed, I wasn't riding it (belongs to busa member yadayada) so there's a possibility that it might be fuel injection related. Isn't there a way to bridge pins in the service connector to show codes or something?