Maintenance & Technical > KX250 / KX125

KIPS subvalves are out by 1 tooth?

<< < (3/4) > >>

needsatopend:
See here:

http://www.thumpertalk.com/topic/940930-02-kx250-kips-powervalve-timing/

And here:

http://www.thumpertalk.com/topic/706213-exhaust-valve-timing/


Others with the same issue

Actionman:
Does your main valve also hang down into the exhaust when its fully open? I actually had to machine a "pocket" into the upper part of the cylinder to let my main valve open on my 2000 kx250. Otherwise it hung down about 6mm.

needsatopend:
Nope the flapper / wedge is ok, you mean it was hitting the piston?

Fwiw I read something about burs building up over time on the flapper valve, you'll have to skim over Eric Gorr's document here:

http://www.eric-gorr.com/images/documents/2-StrokeTopEndAndPerformance.pdf

Somewhere starting on page 18

sandblaster:
If it were mine I would start by taking it apart and cleaning everything.
You may very well discover your issue.
When they are dirty it can be very difficult to see what may be completely worn out.

needsatopend:
Noo they're clean, read the thumpertalk links a few posts back..it's the same issue im having

Navigation

[0] Message Index

[#] Next page

[*] Previous page