"89" Kx 125 Compression

[SABOTAGE]

Hello all,
Hopefully someone with mass carnal knowledge of kawasaki can help me out with this problem. We got a sweet deal on a "89" kx 125 in good shape, compression was a litle low so we had a sleeve job done to the cylinder but the compression is still low(85psi) I checked the reeds and they are good, it don't smoke like if the crank seals are bad just usual 2 stroke smoke, no head gasket leak's, ring end gap is .018 the machine shop said that was ok. I took it back off had them check it for egg shape and it was ok. I timed the exhaust valve's and they were still in time when I took it apart. Is there something I'm missing, or could there be another problem. Thanx for any help from anyone.

 

[Ol'89r]

SABOTAGE.

When you checked your comression did you have the throttle open or closed?

You should have the throttle wide open or you will get a false reading. Or, maybe your rings just havn't seated in yet.

Just a thought. :thumb:

 

[SABOTAGE]

Yes, I had the throttle wide open. I checked it cold (70psi), and I checked it warm (85psi). At first I thought it was jetting or timing, compression never crossed my mind. The timing is back to stock setting, jets and needle clip position is also back to stock. I replaced the air filter before starting up. Also tried teseting with filter off.( no change). As far as ring seating I have about two hours of run time, mostly just messing with the jets and timing, and ride a little and try something else. I did the break in 1/4 throttle 10 minutes, 1/2 throttle 10 minutes, 3/4 to full throttle about 300 yards. that's when total disapointment set in. Sorry about the length just trying to put out all the info. THANX