1) Remove the access plug on the primary.
2) Loosen locknut on cable where it enters the primary. Turn the cable adjuster in until there is a large amount of free play at the hand lever.
3) Loosen the adjustment screw lock nut. Turn the adjustment screw inward until it starts to release the clutch ( screw turns harder ). Then turn 2 turns farther in.
4) turn the cable adjuster back out to where all of the slack is just eliminated ( no play in the lever ). That's the correct cable adjustment.
5) Through the primary access hole, loosen the locknut and back off the adjustment screw until the clutch is fully engaged ( screw turns easier ). Then turn the screw back inward to the point where adjustment screw free play has just been eliminated. From this point, back the screw out 1/4 to 1/2 turn to establish the correct adjustment screw free play, hold the screw in position and lock the locknut.
Check the clutch lever free play. There should be about an 1/8" of free play.