Maintenance & Technical > KX500 Original

Quite possibly the stupidest question ever--but I'm ready!

<< < (2/2)

hughes:
I'm getting me a flywheel weight just the for the stalling issues in tight woods. Off topic sorry.  :-)

KXcam22:
SM fan,
  There are two really easy ways to detune that I have used.  The first is to remove the reedvalve and bend the mteal reed stops inward so that the reeds can't open as wide.  Set them for a 1/4" opening to start.  The second is to remove the pipe, find a large industrial sized washer with an OD the size of the pipe flange and about a 1-1/4" hole and place it flat in the exhaust port, sandwiched between the port and the pipe.  The inner hole of the washer will restrict the exhaust. My sons PW50 came with one of those.  A flywheel weight is also a great idea.  Hope this helps.  Cam.

SupermotoFan:
Excellent replies people!

Yep, I'm on my way to buying one of the Steahly flywheel weights, and for sure I will try the washer in the exhaust port.

Part of the reason I was going for this particular mod was because the engine is currently apart, and I figured it would be a cheap and easy way to lower the compression.


P.S. '86 KX500.

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