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Buell Forum » Old School Buell » S2 Thunderbolt » Archive through April 23, 2008 » Front Brake Light Switch « Previous Next »

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Medic24
Posted on Saturday, January 26, 2008 - 08:28 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Does anyone have the part # for the front and rear brake light switches? I seem to have a bad one. Brake light stays on all the time, seems to be the front switch.
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Buelltours
Posted on Saturday, January 26, 2008 - 09:25 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

front 71590-92, rear 72023-51A according to my service manual
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Aaomy
Posted on Saturday, January 26, 2008 - 10:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

my front hand brake switch is real fussy to get aligned right.. usually takes a couple trys to get everything just right. may want to check that before replacing first time i was playing in that area had the same problem.
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Bebop
Posted on Saturday, January 26, 2008 - 12:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I had the same problem with mine. Start with the front switch.
Check the gap between the lever collar and the switch housing. There should be little to no gap.
If that's not the problem open up the switch housing and take a look at the switch. It's a really simple design. I took mine apart and cleaned it with a small wire brush.
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Sportyeric
Posted on Saturday, January 26, 2008 - 02:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The guys at the dealership told me that people have a tendency to break the little plunger off when installing the brake-lever perch. Or, as has been said, just not having the perch close enough is a common problem.
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Sportyeric
Posted on Saturday, January 26, 2008 - 02:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Actually, having said that, I was having a hell of a time with my brakelight switch melting. Probable cause was a bad ground but I gave up tryng to solve it and just wired the switch to activate a relay that activates the brakelight. That way the switch only has to carry relay current rather than lightbulb current.
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Medic24
Posted on Saturday, January 26, 2008 - 03:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for the help guys. Cleaned the switch and adj. the brake lever. Working great now. Thanks again.
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Bebop
Posted on Saturday, January 26, 2008 - 09:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)


Isn't it cool to tear into something like that and fix it yourself for no money.
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