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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » Archive through June 03, 2009 » 2005 xb12r Firebolt-Engine whine and clunky at 2500-3000 rpms in 1st and 2nd gear...Tell me where it hurts « Previous Next »

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Vroomin
Posted on Sunday, April 26, 2009 - 12:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sup guys n gals just picked up a 2005 firebolt xb12r with 10k miles on it, to which I promptly added another 1.3 k. After about 1k miles my firebolt begin to whine. The whine is high pitched and seems to be constant regardless of RPM's. I am relatively motorcycle illiterate and appreciate any suggestions

thanks
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Akbuell
Posted on Sunday, April 26, 2009 - 11:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

First thought would be the primary chain adjustment. But that would change as the RPM's varied.

Try propping the rear wheel off the ground, and carefully inspect the final drive belt, sprockets, and idler pulley. Turn the wheel by hand, and see if you can locate a problem. Something rubbing the belt? Wheel bearings?
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Vroomin
Posted on Sunday, April 26, 2009 - 01:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks, will do that today.
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Sparky
Posted on Monday, April 27, 2009 - 12:59 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Does the whine sound like the fuel pump noise when turning on the key during start up or is it higher pitched?

Does it make the whine when the bike is not moving?
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Danielrg_usa
Posted on Tuesday, April 28, 2009 - 03:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i too would head strait for the primary. it is usually caused by a tight primary chain. however primary chains don't just tighten up on their own they get looser. i'd still check the tension on it though. crazy things happen. i would have to go with sparky on this. i would probably go in the direction that sparky is. if it isn't the fuel pump and whine is present while not moving then it is probably in the crankcase.
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