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My compression on my 04 XC800 is 120+ on the PTO side and 105 on the mag side, is this to low and if so what needs to be cone. Rings, or rings and piston, have not torn down yet looking for advise. Thanks
 

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Just went and tried it again held throttle wide open and got 120 on the PTO side, and 115 on the mag side that looks a little better. I HOPE
 

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Just went and tried it again held throttle wide open and got 120 on the PTO side, and 115 on the mag side that looks a little better. I HOPE[/b]
Cold engine, kill switch down, wide open throttle, as many pulls until it stops climbing. Use two gauges. Compare.
 

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Cold engine, kill switch down, wide open throttle, as many pulls until it stops climbing. Use two gauges. Compare.[/b]

If both guages are calibrated the same.
 
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