If I didn't change heads I would take a picture. Stock when cold it would read 160psi when new (200 miles), hot was down about 8 psi. New head reads 130-135 psi and runs much better. Remember this is not static compression!
A forum community dedicated to snowmobile owners and enthusiasts. Come join the discussion about performance, racing, troubleshooting, trails, maintenance, riding tips, modifications, classifieds, gear, and more!