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Buell Forum » Old School Buell » Archive through May 28, 2015 » 97 S1 Rear Isolator Question « Previous Next »

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Buellster164
Posted on Sunday, May 03, 2015 - 07:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Recently purchased a used 97 S1 and have been in the process of restoring it to its former glory. I have replaced the front mount/isolator with one from Al at American Sport Bike. But the bike has a mean vibration. I'm thinking my rear iso is the culprit after reading the numerous discussions on here about them.
Thoughts?

rear iso
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Steveford
Posted on Sunday, May 03, 2015 - 07:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Replace them.
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Jim2
Posted on Sunday, May 03, 2015 - 07:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It is visibly torn!
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Buellster164
Posted on Sunday, May 03, 2015 - 07:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I can't see any signs of it being torn. I think I'm going to call Al Monday and order a set just for my piece of mind. If I still have the vibration after then it will be back to the drawing board i guess.
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Hootowl
Posted on Sunday, May 03, 2015 - 08:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It's nearly torn in half. The bolt is probably rattling on the frame when you put your weight on it.
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Hootowl
Posted on Sunday, May 03, 2015 - 08:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

In fact, it is hitting the frame. I can see the marks on the bolt.
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Buellistic
Posted on Sunday, May 03, 2015 - 08:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

REAR ISOLATOR Class 101, just PM me if you want a copy ...
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Tombo
Posted on Sunday, May 03, 2015 - 09:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That isolator is in bad shape. Al will have the newer larger style and that is what you want. You also want to use the newer style bolts. If you are going to do the job yourself then I would take Buellistic up on his offer. There are many ways to do this job and you want the latest methods. My S1 was the original test mule for the ATC method (which I have continued to use) but there are other methods that look simpler.
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Roderick
Posted on Sunday, May 03, 2015 - 09:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Is that how a typical fail isolator would appear ? Or is that an extreme ?

I just look at my S1 and its isolators looks nothing like this case.

Roderick
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Hootowl
Posted on Sunday, May 03, 2015 - 10:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yes, that's the failure mode. The new style isolator has ears/tabs on the bottom to keep the frame from dropping down too far in the event of a tear. But they're also much stronger than the originals and will likely never need to be replaced again.
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Dannybuell
Posted on Monday, May 04, 2015 - 12:14 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

That is a textbook picture of a torn isolator, call Al.
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Buellster164
Posted on Monday, May 04, 2015 - 12:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for the conformation! I'm calling Al and i have also pm'd buellistic for his 101.

As usual, thanks to everyone on this site. You guys have made my Buell experience wayyy more easy than it could have been.
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Buellster164
Posted on Monday, May 04, 2015 - 12:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Not meaning to hijack my own thread but here is the before and so far photos. Once it get it to act right, i plan on finishing the resto




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