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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Electrical - Battery, Charg Sys, Lights, Switches, Sensors & Guages » Archive through March 14, 2008 » Buell xb12 neutral light not working « Previous Next »

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Buellbaker
Posted on Sunday, January 27, 2008 - 10:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My bike has been stood for a few weeks and now my neutral light is very slow at coming on.
When it does its very weak

Anybody have any idea all the rest of the lights are ok been for a good ride and still the same.

HELP
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Sparky
Posted on Sunday, January 27, 2008 - 08:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If the cause is a poor ground provided by the neutral switch or the diodes in the starting interlock, then there would probably be no-cranking episodes happening. Does it start OK in neutral without pulling in the clutch lever when the neutral LED is weak?

If so, it could be a malfunctioning LED in the instrument panel or an intermittant high resistance connection from the neutral switch to the instrument panel contact. Unfortunately the LED is a non-replaceable item.

If the bike is still under the original warranty, I would think the dealer should troubleshoot the problem and/or replace the instrument panel.
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Buellbaker
Posted on Monday, January 28, 2008 - 12:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

No it doesn't start without pulling in the clutch.
So do you know what i have to look at now as no warranty as over 4 years old.

by the way no light starts to appear until engine is started.
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Sparky
Posted on Monday, January 28, 2008 - 11:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If "no light starts to appear until engine is started" is true, that is a clue that something else is wrong. First of all, you should get the Check Engine Light illuminated briefly if the engine stop switch is set to RUN with the engine off, and the ignitin key switch is turned ON (reading from the service manual).

What have you got?

Do you know how to retrieve trouble codes stored in the ECM? If so, there are certain diagnostic checks to perform based on info obtained from reading the trouble codes.

Back to your starting problem, if you don't get a neutral light when you turn the key on in neutral, you could have a defective neutral switch or a defective diode #2. The diode is located in the fuse block. It might help to carefully remove the diode and reinsert it into its position with the diode's arrow pointing left. Then try the starting routine again.
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Buellbaker
Posted on Tuesday, January 29, 2008 - 02:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hi thanks it looks like neutral switch has had it pulled the lead off and earthed it and light came on so looks like new switch needed.
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