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Buell Motorcycle Forum » XBoard » Buell XBoard Archives » Archive through May 20, 2009 » Rattling and severe vibrating when braking and downshifting « Previous Next »

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Hendro
Posted on Friday, May 15, 2009 - 08:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I've noticed when I downshift in 3rd or second gear and brake, the front end of the bike really violently vibrates about 50% of the time.

Anyone have a similar experience or know what this is caused by?

I was thinking maybe old brake pads/damaged rotor/ some engine mount not properly tightened?

any ideas?
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Pogue_mahone
Posted on Friday, May 15, 2009 - 10:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

might be the dirty rotor thing. search teh recent threads,it was just covered in detail over the last 5 days? maybe a week.carefully use brake cleaner on a clean rag and wipe the rotor clean as i recall.
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Hughlysses
Posted on Friday, May 15, 2009 - 10:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Check the condition of the front isolator. If the rubber in it's starting to go it could cause these symptoms.
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Brumbear
Posted on Friday, May 15, 2009 - 10:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

start simple Tires check beltand pulleys then rotors isolatore and primary chain adjustment
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Hendro
Posted on Saturday, May 16, 2009 - 11:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

K thanks for the help guys

ill update if i can fix it
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Panhead_dan
Posted on Sunday, May 17, 2009 - 10:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I have had great results by spraying a clean white rag with copious quantities of "brakeclean" and wiping the rotor on both sides until I get no more crap off of it.
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Xl_cheese
Posted on Sunday, May 17, 2009 - 11:57 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

+1 on checking front isolator.
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