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old slow KX500 guy, site newbie, with a KX85 question

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KXcam22:
Kaos,
  Welcome to the site. You're not that old compared to some (likely just feel it like me).  A quick easy (and free) way to detune the KX85 could be to close the reed stops a bunch.  On almost any bike, the metal reed stops can be bent in to limit how far the reeds open.  This slows the power delivery and takes away some top end. I have no direct KX85 experience but have done this a few of times to help female riders get used to their 125/250 mx bikes. Also, any type of home built restrictor installed in the silencer end (to reduce the pipe stinger diameter) will help some lots more.  Experiment with some rubber heater hose jammed in the end or a drilled out wooden dowel.  Makes it lots quieter too.  Welcome. Cam.

kaos:
Cam - thanks for the tips.  I'd been thinking about installing an extra baffle or 2 in the silencer, then realized it'd be easier to just add a short piece of metal tubing inside of the pipe, at the junction between the pipe and the silencer.  Using different IDs of this tube would yeild more or less restriction.  So it's good to hear that I'm not deluding myself too far.

But the idea about limiting how far the reeds open by modifying the stops - that's a neat way to do it, one I never would've thought of.  Simple, effective - cool.

regarding age: probably my biggest complaint about getting old is not really the number of years, but the number of stupid injuries I've collected along the way to getting here.  I used to hope that someday I'd grow out of dumb moves (or at least run out of them).  Now I'm just hoping I can convince my boy to avoid doing similar stuff.

... but then again, some of my best memories are from those minutes just prior to the ensuing crash!

anyway, thanks to these tips, I'm feeling a lot less hesitant about the KX85.

better go check the cycletrader website!

regards,
tc

KXcam22:
Kaos,
  The advantage of the KX85 is that it is light, handles nice and has great suspention.  I went for the xr100 for my son and now find it is slow, heavy and poorly suspended. Cam.

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