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lakemissy
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VBMWMO #8857
Joined: 01/19/2015
Posts: 8

Rides very stiff. Mine has just a single threaded nozzle (orifice?) at the bottom of the fork tube. Clymer manual and drawings from Max BMW show two piece "damper" with a spacer between the two pieces. Haynes shows one piece like mine. Does the two-piece part provide softer ride? And can that be installed in place of the one piece nozzle? Any other reasons for very stiff front forks?

Randolph
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Joined: 01/13/2015
Posts: 30
Fork stiction

I'm not sure what parts you're talking about. Do you have some pictures?
Sometimes 'stiff' forks are a result of alignment problems and 'stiction'.
Read Randy Glass' procedure for fork alignment at:

http://w6rec.com/duane/bmw/fork/title.html

It was absolutely necessary for me to do this procedure to get my forks sliding well. You have to spend the time to get it right.
-Randy

schrader7032
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VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
Posts: 6273
Has the bike always ridden

Has the bike always ridden like this or is this a new situation? What weight of fork oil are you using? Heavy weight oil will result in a stiff ride.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

mark_weiss
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Arizona
Joined: 11/16/2013
Posts: 170
The one-piece rebound nozzle

The one-piece rebound nozzle is the early style. The retaining rings with floating nozzle was a change. Noise was reduced because less rubbing occurred. The late model setup readily replaces the early one-piece nozzle. Two nozzle rings are available, the sport nozzle has a groove around its external circumfrence.

Later damper rods had more compression holes drilled at the lower end. This increased compliance. If you have early nozzles, it is likely that you also have early damper rods. Later rods had four or five holes (maybe six?) which improved ride. Again, all are interchangeable.

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Mark
qualitycycleservice.com

lakemissy
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VBMWMO #8857
Joined: 01/19/2015
Posts: 8
Thanks to all for your

Thanks to all for your advice. It was helpful. I decided to upgrade the damper nozzle to the three-part later type. I did some checking and measuring on the fork tubes. They check out to be parallel and both in one plane.

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