Maintenance & Technical > KX500 Original
Spring Rate Suggestions
Foxx4Beaver:
--- Quote from: KXDINO on July 10, 2014, 08:25:39 AM ---Foxx do you no what factory connection did to your forks , softer shim stack or some other type of piston ,what did they do with the gold valves ?
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no I don't know, I could find out with a phone call...
I've been using them guys for soooo long, they know exactly how I like it setup, just from my feedback I give them...he did ask me if I wanted the Race Tech stuff back, but it would just sit on a shelf in my shop for the next several years until I finally decided I would never use it again, and just throw em' out anyways....so I'm sure he either sold them, or tossed em out.
KXDINO:
I have a spare 500 ,still with the stock piston etc, like to know what brand stuff they used in your forks . Did they do anything with the mid valve etc? I do suspension as a part time job and hobby so any info would be great, thanks Foxx.
jcm3:
--- Quote from: jcm3 on July 10, 2014, 05:00:45 AM ---
--- Quote from: Foxx4Beaver on July 08, 2014, 01:05:34 PM ---have you taken the suspension/linkage completely apart and gone through it entirely, checking for anything that could be worn, binding, dry, or bent?....or all of the above?.
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Funny, I just did that yesterday. :-D It all seemed to move ok, and if anything, 'seems' like it is too soft. Yet, the spring rate is for a 240 pound guy and I'm 190 without gear. ??? It could also be normal. The adjuster ring is down about 2/3 of the way toward the bottom.
It seemed fine when I rode it though, so I think I'll wait until I get my engine back from Tom Morgan and get the bike back together and check the static sag to compare it against the race sag. Until then, I'm just guessing.
I'm also going to drop my shock off at RG3 suspension here locally to have the fluid changed and the nitrogen recharged. Not sure if that will help or not, but I think the last time it was done was by a previous owner in 2012, so it's due anyway.
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So, I think I have my answer as to why the shock spring (a shop put springs in for the last owner, who weighed 240 pounds) needed so much preload for me at 190 pounds. I dropped it off at RG3 last week, and they just called me this morning. They said the bladder was so compressed that when they took it apart that the shock sprayed the guy and sprayed half the shop. Doh! He also said there was hardly any nitrogen in the shock.
I asked him if this could explain why I needed to have the preload adjusted so far down, and he felt that it could. I asked what would cause that, and he basically said that the last time it was serviced (not by Pro Circuit) that they probably didn't put it back together right. He said I probably had very little rebound, so it should feel much better when I get it back.
I didn't get a chance to push it much, since it was just the start of my third short track session when the engine grenaded. :cry:
So, if others see something like this happening to them, I'd recommend getting the shock serviced by a reputable shop. Probably obvious, but just thought I'd mention it if this comes up during a search in the future.
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