compression

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...

Looking for a nice used RK Tek (Torque-Line) head for a Rotax 600ho. Prefer pump gas compatible domes.

I have a 07 summit x 151. I did a compression test and got 100 on both cylinders. Some people have said that is ok (not to low) because they are the same on both, But I have read that that is real low. Any advise would be sweet. Thanks J

08 700 RMK Did a compression test on my sled cold and both cylinders pulled 115 psi. Can I get some insight on this? Thought I should be around 130 to 140, but this was a cold test.