05 Hayabusa. Was out for a ride when my bike started bogging down. After a few minutes the engine shut off. When I turned the key I could not hear the pump priming so I got a tow home. I pulled out my multimeter and tested everywhere dealing with the pump. I’m not getting power at the pump harness or the fuel pump relay. I’ve tried new fuses and and new pump relay. I also tried my buddy’s 2007 ecu, ignition switch, tip over sensor as well as bypassing the kickstand sensor. At this point I’ve exhausted all my knowledge so any insight is appreciated!
No power to fuel pump
- Thread starter Joshmc628
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Hayabusa Wannabe
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Start button does nothing fuel pump not priming | General Bike Related Topics
Unplug fuel pump wire harness at tank. Check connector to see if a wire has backed out. Had that happen to mine. Reseated it and all was good
This seems to be an extension of these initial problem that you reported, yes? What has transpired between the last post of the above thread and this recent ride? The kill switch is in the ON position?
Well my bike was fine for months after that post but now I’m having a new issue since yesterday. Kill switch is on and flicking it doesn’t make relay click or anythingStart button does nothing fuel pump not priming | General Bike Related Topics
Unplug fuel pump wire harness at tank. Check connector to see if a wire has backed out. Had that happen to mine. Reseated it and all was goodwww.hayabusa.org
This seems to be an extension of these initial problem that you reported, yes? What has transpired between the last post of the above thread and this recent ride? The kill switch is in the ON position?
Hayabusa Wannabe
Registered
Battery fully charged? Load tested? (Although retail store employee load testing provides a gamble of a result, but it is free and easy.)
Getting a 12.5 on the multimeter direct at battery. We tried push starting and jump too starting but no luck there.
Tried it with the kickstand up and clutch pulled in but still no prime. tried it while in neutral and in 1st gear but no luck.
Good question. Yesterday I put power directly to the pump and it still didn’t turn on.i swapped out the fuel pump and it now gets power direct at pump which means my old pump must of went bad. Only problem is there’s no power going through the harness clip. Wondering if something else got damaged when my fuel pump went out.
Yup changed out both the fuse and relay no luck. At this point I’ve tried everything I can think of: borrowed friend’s ecu, ignition, killswitch, tip over sensor, and fuel pump relay as well as bypassing the kickstand sensor. I’m starting to think it’s something in the harness so I may just start tracing wires down. Now I just gotta find a wiring diagram
202mphbusa
Registered
Dead man tether on the bike?
Na no mods or anything like that, just a 99 engine with 05 flywheel and crank position sensor
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