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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through April 03, 2011 » Front end knock? Head bearing? Normal? « Previous Next »

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Bassettkyle
Posted on Monday, March 21, 2011 - 11:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

http://www.badweatherbikers.com/buell/messages/290 431/604386.HTML


Sorry to start this topic up again but reading all these comments people talk both about bearing replacement required and it is just a knock in the fork. Mine is real loud, it seems to knock when I pull up on the bike. I have retorked the head many time and it never gets better.

How big of a job is changing the bearings? It may be worth a try. Anyone already document it? Special tools required?

Any other idea's, don't like driving with this knocking noise.

Thanks
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Bassettkyle
Posted on Monday, March 21, 2011 - 11:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

FYI, got this response from a fellow bad weather.
I tend to agree and will try to forget about it. Does drive me crazy......


Actually, I do still have the clicking or knocking front suspension, but I have discovered it comes and goes. If I get out and thrash the bike through some twisty roads, it goes away for a while. I believe it is something to do with cold oil in the forks. I first discovered the noise during cold weather. I am thinking it might go away with the warmer weather coming up. I did retorque my steering head bearings, but never replaced them. My Buell still handles fine, so I try not to worry about it. More than once, I have tried to demonstrate the noise to fellow Buell riders while stopping for a break only to find it gone. Every time I ride aggressively it stops doing it. It only clicks on the rebound of the front forks. If you press down on the forks, it clicks when they come back up. If it gets too bad, I might take my forks off and get them serviced by a good mechanic. I don't think my steering head bearings are bad at all.
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Avalaugh
Posted on Tuesday, March 22, 2011 - 03:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

No special tools required, if your competent with spannering will take around 1.5 hrs start to finish.

I changed mine and the knock has gone, but at the same time I fitted an R1 front end, I'm more inclined to think it was the forks rather than the bearings.
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Ausxb
Posted on Tuesday, March 22, 2011 - 05:25 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mine does it only on the upstroke right side shock and does seem to fade after a ride , louder when cold as you described
Have you had the wheel off and compressed the shocks individually to find out which one ?
I have wondered if this is only effecting right hand shocks, something in the assembly process.
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Mountainstorm
Posted on Tuesday, March 22, 2011 - 08:54 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Only on the up stroke and only in cold weather for me. I was concerned at first but then I noticed no difference in handling and no loose parts anywhere. It is something to do with thick oil going through the valving I think.

I wonder if changing the fork oil would make it go away...oil does degrade due to cold weather. It becomes thicker.
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Bueller4ever
Posted on Tuesday, March 22, 2011 - 07:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I agree with cold oil in the forks. Mine is really loud too, especially when making slow turns when the road surface is bumpy. it's more a rattle than a knock.
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Orman1649
Posted on Wednesday, March 23, 2011 - 03:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The bearings and noisy forks are 2 different issues. I had my bearings replaced under warranty once and it is going to need it again. I didn't need to compress the forks at all to hear any "popping" or "clunking", I would just have to turn the bars all the way in either direction.
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Oldmanriver
Posted on Wednesday, March 23, 2011 - 07:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I didn't much care for that noise either, and was ready to have the dealer look at it. But since I changed the fork oil this winter I have not heard it again since!
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Dktechguy112
Posted on Wednesday, March 23, 2011 - 11:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Next time someone take the forks off their bike, they should compress the right one and see if it clicks on rebound, if it does, problem solved!
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Nillaice
Posted on Thursday, March 24, 2011 - 06:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

same story here. torqued steering stem nut and bearings checked out fine.
had the forks re-biult under warranty, and the noise went away.
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Guy_glover
Posted on Thursday, March 24, 2011 - 07:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My dealer loosened all pinch bolts-Torqued the stem nut -Put neversieze on the pinch bolts and retorqed them. That noise has been gone for 15000 miles now.
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