bring you ski down this weekend and all your jets. i can give you a hand. learning to read the ski is better than just looking at the plugs, especially with the oils we use, piston wash is better than plug reading IMO. I got some jets too. does it go brummmmpff (hesitation) then braaaaaaaap! or does it go bbbbbbbbBBBBBBBRRRRRAAAAAAAAAP when you stab the throttle. lol