Maintenance & Technical > KX500 Original

Stock Silencer Clearance

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Polar-Bus:

--- Quote from: dmazz71 on May 22, 2011, 12:07:36 PM ---I just measured the race sag and it looks like I need a stiffer spring.  It measured 4.5" and the collar is already about 3/4 of the way down the threads.

Thanks

--- End quote ---

That's too much sag. As a ballpark you want to be at 95-100mm ( 3.75"- 3.98" )

A quick way to tell if your spring is too soft is if you keep tightening your shock preload, and you can't achieve the desired sag measurement.

As a generall rule, lighter riders = slightly greater sag, and heavier riders slightly less sag. I have my sag set at 4.12"  but I only weigh 155 lbs

lastly, DON'T just add more compression to the shock clickers to compensate for too soft a spring rate, as this action drastically upsets the bikes bump absorbtion capabilities.

dmazz71:
I think I may be able to get away with using the stock spring since I have another 1/2" of adjustment left on the spring.

Thanks
Dan

DoldGuy:
As a general rule you continue to add preload to the spring to set your sag, but need to go stiffer on the spring if the bike has no "static sag" which means the bike should sag under it's own weight (no rider) when taken off of the stand.

maddoggy:
yay! i finally posted up and didn't sound like an idiot for once!  :lol: :lol: :-D :-D

dmazz71:
Thanks for all of your input guys.  I was able to get the sag to 3.75" and really feels like I'm on a totally different bike.

On top of adjusting the suspension, I also replaced the FMF Gnarley pipe (that came with the bike) with a stock pipe and installed a boyesen rad valve.  The rad valve really did give the bike an extra boost.  I also threw some VP street blaze 100 into her veins.  Not sure why I though I needed more power as I'm far from throwing this bike around.

Thanks again
Dan


 

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