what is polaris tell in the manual?
belt deflection on 400 scrammy,i must known once for all,thanks.

 

The belt defection is when you put a flat edge across the two clutches and push the belt down in the center and measure the distance from the flat to the belt (free play). To adjust if too loose or too tight you pull off the secondary and then pull it apart there's shim inside the hub two half remove or add until you have the right play in the belt (must have at less one). I think it's 1 1/6 to 1 1/4 inches. just make sure you are careful that secondary is spring loaded and has to be reload to work when reinstalled. You put both half together. Put your spring in the same holes as you removed it (there numbered). Install your helix and turn the one half 1/3 of a turn and push the helix down and install the snap ring.

 

1 1/6 to 1 /4,that a lot of loose on top,what is the secondary
you were refering to? p-85?
even with all shim out,it just can't get any looser than this.