When you get the fitting for your compression checker, you should also do the oil test. Warm up the engine and then take a compression reading. Next squirt some oil in the spark plug hole and redo the compression check. If the pressure goes up, you have a ring issue, but if it doesn't, you have a valve issue. Remember, that the throttle should be wide open when doing a compression check. In my short time dealing with these engines, I have found that the rings (especially the oil ring), are pretty minimal at sealing. Also, how fast are you losing oil? If the oil ring is not sealing well, you will tend to lose your oil faster then if it is the valve seals.
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2005 Hammerhead 150
170cc BBK, PnP Big valve Head, A12 Cam, Uni Filter, Custom Exhaust, 10G rollers, 1500 Contra Spring, 2000 Clutch Springs
Just added - 2007 Joyner 250 SV - Let the fun begin
4-Dirt Bikes, Baja Bug and enough toys to keep me in the garage and out of trouble.
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