Maintenance & Technical > KX500 Original

KIPS frozen

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gwcrim:
Yup.... the little rod going into the cylinder is stuck tight.  I suppose Ya gotta pull the jug to repair?

Rick:
Crim,

I just posted some thoughts on this issue on your other post.  I have helped folks work through this problem before, and while it takes a little while, big green's bottom end can be resurected.

Rick

gwcrim:
Bottom end?  I'm not talking connecting rod here.  Just the KIPS actuator.

Rick:
Nope, was talking about off idle (bottem end) throttle response, not repairing the bottom end of the motor.

The KIPS valve is designed to allow for increased exhaust gas flow as RPM's increase.  So, if your valve is stuck wide open, you will have a mid range "hit" as the RPM's catch up to the amount of exhaust gas that can move through the cylnder and exhaust port.  

Conversely, if your KIPS is stuck closed, fixing the problem will give you high RPM (top end) power once again.

Sorry for the confusion is wording...  :oops:

Rick

supermotard500:
you have to pull the drum valves a few millimeters out of their holes. Maybe this will not be easy to do.
Then you can pull that "little rod" out.
Warning: I'm talking of the first powervalved KX with the two drum valves only, not the actual with the center power valve located in the main exhaust.

Niels

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