Won't start? - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 14 (permalink) Old 04-18-2014, 06:58 PM Thread Starter
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Won't start?

Ride to a buddy's house, shut the bike off. When I tried to leave bike wouldn't start. When I turned the key fuel pump nor light came on. Checked fuse box under left side but there's no fuses bad. Any one have this problem? Or know how to fix it? I also remember a couple times trying to start it and the fuel pump would be delayed.
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post #2 of 14 (permalink) Old 04-18-2014, 07:25 PM
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You do realize that there are bazillion posts here on this. And one can search and see. I'd suggest taking the time to start there. It' will be faster and better.
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post #3 of 14 (permalink) Old 04-18-2014, 07:34 PM
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Won't start?

Is the kill switch on? Last time my fuel pump didn't prime it turned out to be the fuel relay.

2001 SP1 (sold)
2004 SP2 (properly stored)
2012 Ruckus (stolen)
2015 Grom (under construction)

Weyrauch pronounced (Y Rock)...Rock for short.

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Last edited by weyrauchrc51; 04-19-2014 at 11:28 AM.
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post #4 of 14 (permalink) Old 04-18-2014, 09:35 PM
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Or check the kick stand circuit....that is a common issue too.

GL



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post #5 of 14 (permalink) Old 04-19-2014, 09:35 AM Thread Starter
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Thanks guys, I checked the starter relay also and kick stand. Same issue still
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post #6 of 14 (permalink) Old 04-19-2014, 09:41 AM
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Relays can fail intermittently, at least for a while, before they're toast.
You can use your highbeam relay socket to test the fuel relay and also the bank angle relay. If your bank angle relay is giving out, then the fuel relay wont get power.
I don't know why your lowbeam headlight won't come on tho, I didn't think that would happen because of relays...

John, 2000 RC51 #000100

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post #7 of 14 (permalink) Old 04-19-2014, 05:33 PM Thread Starter
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Where do I find the fuel relay and bank angle relays? Those the 2 black rubber connections under the rear seat? I'm going to tear it down tomorrow after Easter dinner, I'm going to start with the kill switch, then move on from there. Check the connectors and start tracing wires from the fuel pump. I'm hoping it's an easy fix bc I'm not motorcycle tech, but I also can't afford for a dealership to work on my bike especially just to find out it was a 15$ relay or something stupid. Any assistance would be appreciated!
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post #8 of 14 (permalink) Old 04-19-2014, 05:36 PM Thread Starter
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Also wondering why my power commander is getting juice? I bought this bike a couple months ago, and I don't know much about these bikes yet.
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post #9 of 14 (permalink) Old 04-19-2014, 07:02 PM
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Yes, the relays are located in the tail. If one goes out, the bike won't run. In your front left (by headlight) there is an identical relay you can try. The relay cost about $30...good to have one or two on hand I learned.

2001 SP1 (sold)
2004 SP2 (properly stored)
2012 Ruckus (stolen)
2015 Grom (under construction)

Weyrauch pronounced (Y Rock)...Rock for short.

Semper Fidelis
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post #10 of 14 (permalink) Old 04-19-2014, 11:26 PM
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Moved to "Tech Talk".....
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