Re: secondary helix angle adjustment
To change the helix take the screws out and rotate the helix to where the numbers go down the roller. So say stock is 60 rotate the helix until its the 50 that slides down the roller. A lower number will hold you in low gear ratio longer, it will give you more motor rpm. The higher number will give let you up sift faster but bring down the motor rpm. I like to start with the driven clutch get it right first. I like it to up shift as fast a possible, but if you go to far which would be a higher # helix it wont back shift fast enough and you will slip the belt coming out of a corner. It acts likes its bogging down. Once you get the right helex you like then I would get the drive spring where I want the engagement rpm. to be. Then dial in the cam arm weight to where you want the top rpms to be. This is what I have found the works for me. I hope it helps.