Clutching

I have a 2000 700mm 141" track and just installed power inc pipes and reed spacers. I was told to go for the silver secondary spring @70 on my stock 43 helix and I have a ywy on primary. Rpms are 8500 but on a climb I am only getting 60kmh. I dont feel that I am getting the performance that I should get. Jetting is good. Can anyone help!

Way too much secondary side pressure!!!. Run the green at 70 with those pipes. This will let the secondary shift out better & give you more track speed.

Thanks Turk any Idea what kind of track speed I should be looking at in powder

as much as possible