[4crossfire]

Hello, It seems I have worked on the crossfire 150r more than my son has used it. When we first purchased it it smoked really bad and had electrical issues. Last year I changed the piston and rings which fixed the smoking issue and then I fixed the electrical issue with some parts and securing better grounds. It ran and started perfect. By the end of last summer it was getting very hard to start, and when it did, it died with a little gas. This spring I cleaned the carb., check the spark ( nice and blue) flushed the gas tank with new filter and gas. Still will not start. Had to buy a compression tester. Checked it... Only 60lbs. Ok, what happen to my new rings??? Put oil in the head and it went up to 120lbs. Has to be bad rings... again??? Took head and cylinder off, everything looked fine. No scratches or cracks. Honed and then put a new set of rings on (aligned them correctly). The end gap on the new rings was about .010. Should be within specs. Timed and torqued everything down and still will not start. Set the valve lash at .004 each. Checked the compression again and same readings with new rings. 60 lbs. and 120 lbs with oil. I put air into the spark plug hole and noted no air coming out of the exhaust or carb. I thought the oil trick was for the rings, not warped head or valves. Also, when I was trying to start it for the last time I had the oil dip stick out and it sprayed oil out. Is that normal? Never had the dipstick out and tried starting it when it ran. Is that telling me too much cylinder blow by? Valves look ok, so... Bad cylinder-piston-rings-head-compression tester or mechanic? Just wanted some advice before I wasted more money on the cart. Help!