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2007 600 CFI compression

Stock build?

If you haven't ever done the top end do it! It's the cheapest insurance you could ever buy. Compresion testing is a bit tricky on 2 strokes as they don't have valves but your psi sounds good. Put new pistons in those good holes before you lose a ring!
 
Sounds normal. You will find a lot of various readings with different brands of gauges. Short hose is best or pull rope 5 times with throttle always open all the way to test. Leak down tester is the most accurate way to test rings.
 
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