Maintenance & Technical > KX500 Original

Compression Issue

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AV8:
When I slowly kick my K5 it seems to have low compression. When kicking to start it, it has high compression (enough to stop my stroke at times) and it starts easily.  It is an 86 with the single ring piston. Is this normal, or does it need rings?

Thanks

Phil

oic0:
How slowly? I can move mine through its stroke with my bare hand if I go slow enough but it has around 165 lbs compression.

toomany:
As said by oic0, how slowly are you kicking it? Mine has great compression and when going super slow (finding TDC) it is very easy to move. It's normal for the presure to bleed off past the rings. When I go to jump on it....I can stand on the kickstarter and have it barley move (I weigh 155lbs). There have been times when the pistion is comming back up (midway through kick) and I wasn't completly "commited" to kicking it....it has stop me dead in my kick.

AV8:
How slowly?  When I am easing it thru to get TDC prior to the starting kick it feels weak although it will stop me mid kick if I dont kick like I mean it. I need to put the compression gauge on it and see where I am. 

Phil

doordie:
Maybe it?s KIPS-funktion,it should bleed a bit of compression when kicking thru "mouse-ear",but if it?s no slack in actuator-arm,it will close exhaust chamber (front of barell) and sub-exhaustports (mouse-ear) when kicking faster.
I don?t remember if 86-barell have the same funktion as 89-on.. :|

This is a longshoot.... :roll:

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