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Old 11-27-2011, 09:33 AM   #16
Max Headroom
lost in the '70s
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Joined: Feb 2008
Location: New Zealand
Oddometer: 521
Originally Posted by disston View Post
So one of the things you suspect is the noise you think is bottoming out is actually something else? Or is it the lack of movement that makes you think the forks have bottomed out? Misaligned tubes, sometimes called sticktion, can make the front end stop movement mid-way through passage. (sometimes I can't help being too wordy, Sorry 'bout that)
Nah, in my case I had run the bike for about 3 1/2 years following its restoration with the anti-bottoming springs installed, and it seemed as though they were simply along for the ride. I hadn't realised that they require a modified nylon bumper to "hold" them, and instead they were simply sitting on top of the standard bumpers. This is what was causing the rattle.

When I next rode the bike after having removed them, the front guard kissed the horn, something it had never done before. So without disturbing the stanchions I simply removed the big nut at the base of the sliders and refitted them after a short time, but this time I used the correct nylon bumpers. No more rattle, and no more damage to my front guard.
'76 R90S silver smoke
'75 R90/6 hybrid

'Skills are learned, talent is ornate.' Billie
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Old 11-28-2011, 09:55 AM   #17
bay OP
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Joined: Aug 2010
Location: south demark
Oddometer: 43
bmw r1oo fork swap

ok,so now i have new progressive fork springs in,which i bought from a shop just over the boarder in with a service kit from moto bins in england new 5 waight oil and the springs i am very please with the end result.i think ill try and contact toastertan as his top yokes look the dogs danglies.thanks for all your help.
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