Front shocks pre-load ??? sp2 - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 9 (permalink) Old 10-04-2012, 01:57 PM Thread Starter
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Lightbulb Front Forks Pre-load ??? sp2

Front Forks Preload setting HELP.....

When I turn my pre-load clockwise to "hard", does it stop at some point or just keep spinning when it hit its hardest (most compressed) point.

Yesterday trying to set sag and turning the hex all the way in so I can back out but it just keep turning and turning both CW & CC no stops.... Someone please clarify....I'm confused.

Last edited by kvcobra; 05-18-2013 at 01:02 AM. Reason: update
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post #2 of 9 (permalink) Old 10-04-2012, 03:55 PM
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It should stop in either direction as the adjuster plate reaches it's limit.
At the upper end, it reaches it's physical limit, and at the lower end it contacts the stopper ring.


That black fork pre-load adjuster fits over flats on the adjust case, which is part of the cartridge assembly.



If you use excessive force, you could round off either the adjuster nut, the adjust case flats, or both.

What you can do is remove the retaining clip holding the adjuster nut onto the adjust case (middle photo), and remove that adjuster nut to check if it or the adjust case (lower photo) have been rounded off.

And also, never use excessive force to adjust the rebound adjuster.
I only use the tips of my finger with a smaller screwdriver (tweaker) to make adjustments.
If too much force is used, the rebound needle and/or seat can be damaged or destroyed.

Last edited by SubSailor; 10-04-2012 at 04:00 PM.
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post #3 of 9 (permalink) Old 05-18-2013, 01:07 AM Thread Starter
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Well finally took the retaining clip off and it looks normal. I turn it in like 25 turns and no stopping point anywhere. turn it out 25 or 30 turns and again not stopping point. Is my preload adjustment F****ed up.... Below are pics of my top.


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post #4 of 9 (permalink) Old 05-18-2013, 08:18 AM
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What's the adjuster nut look like?
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post #5 of 9 (permalink) Old 05-18-2013, 08:36 AM Thread Starter
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Quote:
Originally Posted by SubSailor View Post
What's the adjuster nut look like?
If you are talking about that black nut on top, it fits on to the flat grove perfectly and turns it without problem. Just not sure why either side will not have a stopping point. Thanks Sub. You seemed to be the only one who is trying to help......
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post #6 of 9 (permalink) Old 05-18-2013, 08:44 AM
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I can guarantee you there are physical limits to this adjuster.
If it continues to spin in either direction, something has happened.
The adjust case on the fork looks ok, so I'm curious what the matching portion of the adjuster nut look like.
I suspect it may be rounded.
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post #7 of 9 (permalink) Old 05-21-2013, 11:45 PM Thread Starter
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Hey, Sub... Can you try turning the silver post (spring pre-load adj) with a 12mm to see if the black hex around it turns with it. On mine, the black hex turns with the silver in either direction. Should I just try to hold the black hex with a different tool while turning the silver. Will this damage anything????


On a different note, last week I change my suspension to the second setting in the below picture (ofcourse unknown Front spring pre-load) and this thing will not turn correctly. It feels like the rear is going to kick out when leaning over much... I was unable to run at my "normal" speed around turns. I really need to sort this out.... Been riding her for almost a year and still did not feel like its a part of me when on it like my last bike....


Last edited by kvcobra; 05-22-2013 at 12:52 AM. Reason: EDIT
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post #8 of 9 (permalink) Old 05-22-2013, 07:07 PM
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The thin black hex nut is the adjust case lock nut.
It should spin as the adjust case is rotated. You can't normally see it since it's covered by the preload adjuster nut.
Do not loosen the adjust case lock nut unless you're planning on removing the fork bolt (aka fork cap).
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post #9 of 9 (permalink) Old 05-22-2013, 10:28 PM Thread Starter
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Ok... I got it. I just took a risk and keep turning CW and after 20 or so turns it hit a stop... "Nice..." I back it out 6 turns on both sides. Will find out how it performs this weekends.

No wonder it rides kind of weird recently. The fork springs each had a totally different setting. Thanks for your help, Sub....
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