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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Electrical - Battery, Charg Sys, Lights, Switches, Sensors & Guages » Archive through April 21, 2013 » Electrical problems/ HELP « Previous Next »

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Rocketeer
Posted on Wednesday, August 29, 2012 - 10:59 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hello fellow Bullers. I can us some of your wisdom on a matter. Earlier this year I had the wonderful (right) experience of the guy locking up the brakes of his truck in front of me. As a result I went to the left with breaks on and down I went at about 30 mph. The bike is a 2002, S3T. First item, the left blinker was broken off which I replaced with a new one. However I have not been able to get any of the blinkers to work. My friend used an OME meter and checked all the exposed wires and the fuss’. Found nothing. 2nd the bike sat for a month before getting back to it and the battery was dead. New battery was put in March 2012 a mouth before the crash. Last Monday night I got it running and drove it about 25 miles on the highway at 70 should have charged it up. Stopped for about 45 minutes, went to start it and nothing. Everything was dead, dash lights didn’t come on when key was turned. Kept turning the key on and off and after about 10 times dash lights came on but battery didn’t have power to start the bike. Not sure if starter switch is working as sometimes dash lights come on other times not. One thing I did notice was the clock always worked. (anybody need a Buell wall clock) Not sure what my next move should be. Thanks for taking a look at this I need your input.
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Al_lighton
Posted on Wednesday, August 29, 2012 - 04:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Charge the battery with a motorcycle battery charger or a suitable auto charger that won't cook the battery.

Measure the voltage at the battery with the bike not running. It should read about 12.7 Volts DC.

Start it, measure the voltage at the battery again with the revs at about 2K. It should be reading about 13.5VDC. If it isn't, likely either your stator or voltage regulator has died.

If the charging system isn't working, check the stator for AC voltage output while the bike is running per the service manual. If the stator checks out, then it is likely the voltage regulator.

Check all grounds while you're at it. A bad ground will not only render the charging system non-functional, it could burn up your voltage regulator if it isn't already dead.

Al
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Rocketeer
Posted on Thursday, August 30, 2012 - 09:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Al, thanks very much, I will do this on the weekend.
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Harleyelf
Posted on Monday, September 03, 2012 - 11:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The key switch could cause the hard start issue if your battery is good. It can be bypassed. Al can sell you a replacement. Buy a multi-meter for $4 at Harbor Freight and you can check your AC voltage at the stator plug. If the AC is 28 - 54 volts and the DC never gets above 13, your regulator is shot or has a loose output wire.

(Message edited by harleyelf on September 03, 2012)
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