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Buell Forum » 1125R Superbike Board » Archive through May 31, 2015 » My R keeps blowing the 15 amp fuse fir the starter. « Previous Next »

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Father_of_an_era
Posted on Sunday, May 17, 2015 - 02:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hey all, my 08 R keeps blowing the 15 amp fuse when I try to start the bike. I am not a mechanic and don't have an understanding of the electrical components of my R. I do all of the upgrades (exhaust, brakes, brake levers, grips, pegs, hydraulic clutch, led light) but electrical is beyond me. What simple possible fixes (if any) can you guys suggest? Will a bad relay cause the fuse to blow? Thanks for any and all input.
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Two_seasons
Posted on Sunday, May 17, 2015 - 05:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Contacts in the ignition switch may have come apart, that is, the wiring has disconnected from the discrete (single) contact(s) area.

Take apart the ignition switch and check. There is a direct short to ground somewhere. If it's in the ignition switch, when you push the normally open starter switch, then this would complete the path to ground for the starter circuit.
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Cowles1016
Posted on Sunday, May 17, 2015 - 06:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I know for my 08 1125r I was having issues with my 30 amp fuse blowing and it was a bad voltage regulator, maybe investigate that...
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Two_seasons
Posted on Sunday, May 17, 2015 - 09:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

^^"...when I try to start the bike."^^

I should have asked you what you mean by that. If you do the routine like I do, you set the ignition switch to ON, then engine stop/start to RUN, then push the starter switch to engage the starter.

Is it the ignition fuse that is blowing when you push the starter button?
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Father_of_an_era
Posted on Sunday, May 17, 2015 - 09:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks guys. Yes, after I turn the key to the run position, I then flip the start/stop switch to run. It is at that point the fuse blows. I don't even get to push the start button before it blows.
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Father_of_an_era
Posted on Sunday, May 17, 2015 - 10:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sorry, the fuse actually blows when I turn the key to the on position. It doesn't matter if the start stop switch is on or off.
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Two_seasons
Posted on Sunday, May 17, 2015 - 11:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Pull the ignition switch apart.

You should also check how the ignition switch harness routes around the fairing stay. The harness can become frayed there.
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Father_of_an_era
Posted on Sunday, May 17, 2015 - 11:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks Two, I will give that a look when I get home tomorrow. I appreciate the info.
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Duanelr
Posted on Monday, May 18, 2015 - 01:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hi guys, this seems to be a common problem. I'd like to do preventative maintenance on mine to guard against this, but it's still unclear exactly what wears, and where. I've had my fairing and headlight off and inspected the switch area carefully. Are there any pics on the web of wires with a worn jacket? Thanks.
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Nuts4mc
Posted on Monday, May 18, 2015 - 02:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

D...go here...scroll down for pix ...it might help...Zac4mac made an early effort to fix/document the issue...I just added more wire and spiral wrap to the lead.
http://badweatherbikers.com/buell/messages/290431/ 651318.html?1316977313
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Bartone
Posted on Tuesday, May 19, 2015 - 05:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Is one of your headlight bulbs burnt out? That happened to me where the bulb burnt out but the wires in the bulb fused together causing my fuse to blow constantly. left me stranded with no spare fuses.

Could be the issue or not. but its a quick check
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Father_of_an_era
Posted on Wednesday, May 20, 2015 - 10:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well, I found a few wires (don't ask me what they go to cause I don't know) that were rubbed and exposed. It looks like I will have to start opening up the wire harnesses =( . Barton, I will definitely look into the headlight tonight when I get home. Thanks for the tip.
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