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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » Archive through August 12, 2010 » 97 S3T Engine dies once you try to drive « Previous Next »

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Jbam101
Posted on Sunday, June 20, 2010 - 02:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My 97 S3T starts normal, idles normal, RPMS rev up normal but the RPMS drop to Zero once the bike is put into first gear and you release the clutch. Gears move through full range with no problems or binding}
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Nallac
Posted on Sunday, June 20, 2010 - 04:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

sounds like the clutch switch isn't working.Unplug the wires from clutch switch and put a jumper wire between them.If that fixes it, strip the switch and clean the contacts.
They accumulate quite a bit of dirt in em,same goes for the front brake switch.
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Sparky
Posted on Sunday, June 20, 2010 - 04:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'd say the clutch switch may be working fine but the sidestand switch probably is not.

The clutch switch is also used for the starter interlock. If it is not working, then the starter won't crank if in gear. Does the bike start in gear with the clutch lever pulled in? If so, the clutch switch is likely OK.

The ignition interlock ground signal goes through the neutral switch or the clutch switch or the sidestand switch via diodes depending on the various states of those switch components

If the sidestand switch is defective (always open regardless if stand is up or down) the bike will die when put in gear and the clutch lever is released.
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Jbam101
Posted on Sunday, June 20, 2010 - 08:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thank you for your advice and help. I unplugged the clutch switch and installed jumpers bike started and ran with no problem. no corrosion or dirt in clutch switch. Cleaned clutch switch with electrical cleaner. also started bike in both neutral and in gear with clutch lever pulled in. Problem still there. }how do I test the side stand?
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Sparky
Posted on Monday, June 21, 2010 - 02:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Same way as the clutch switch.
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Jbam101
Posted on Monday, June 21, 2010 - 08:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ran bike with jumper installed in Clutch switch and bike drove with no problem. I will replace the clutch switch. Problem fixed.}
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Kalali
Posted on Tuesday, June 22, 2010 - 11:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You will be pleasantly surprised how little that switch costs... IIRC it was under $5.
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Kalali
Posted on Tuesday, June 22, 2010 - 11:40 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You will be pleasantly surprised how little that switch costs... IIRC it was under $5. BTW, that stupid switch got me stranded on the side of the road before I had learned how to jump it. Now I always carry a paper clip in my tool bag.
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