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Buell Forum » THUMPer Forum » Blasting Away - The Thumper Quick board » Archive through June 30, 2013 » Well search hasnt turned anything up on a belt running half off the rear sprocket « Previous Next »

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Monzaracer
Posted on Monday, September 03, 2012 - 02:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

New wheel and sprocket under warranty at around 8k-9k, so at 16k I put a new belt and tire on, just noticed the belt isnt running off the pulley. Bearings seem to be fine.
any Ideas, bike is now sitting at nearly 20k.
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Titusand
Posted on Monday, September 03, 2012 - 05:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Are you saying the belt is staying on the pulley?
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Ezblast
Posted on Wednesday, September 05, 2012 - 01:20 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Please clarify - picture?
EZ
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Piratius
Posted on Wednesday, September 12, 2012 - 03:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My belt also runs at the very edge of the pulley. I figured that it was a design "feature" of the Blast, and that's why it has the plastic ring around the outside edge of the rear sprocket :-D

-Brad
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Monzaracer
Posted on Sunday, September 16, 2012 - 10:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The belt is actually running OFF the out side of the rear pulley about 3/16 to 1/4 inch. does the plastic gaurd on the rear pulley actually keep the belt from running off? cant find anything loose, new Michelin Gold Standard is so far at over 4k miles with tread still showing, new belt at same time. Had to replace the front bearings but those are doing fine. and reas dont appear to be loose.
Confusing, no loose parts but belt running off the rear pulley. Never figured I would need to put a new pulley on but wonder if that was problem, not replacing the pulley(s).
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Titusand
Posted on Sunday, September 16, 2012 - 11:09 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Something is misaligned obviously. I haven't cracked my service manual in 2012 but it seems to me that there is a section about that very problem.
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Indybuell
Posted on Monday, September 17, 2012 - 10:01 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yep. Time to break out a cheap laser. My guess is that something was shifted when the new belt was put on, and not torqued to spec.
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