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compression test

  1. T

    what cylinder pressure should I have?

    I have 2018 summit 850 running 100 psi on pto side and 107 mag side (7000' elevation), seams low to me, anyone have numbers to compare? My arctic cat 800 has 125 both sides, everything else checks out but doesn't want to idle or start very good. 950 miles on 7lbs boost, thinking it needs...
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