Simple stuff. To start though - it's going to be tough while you break in the clutch spring, so it will be tough to pull, but I'll give you the quick walkthrough on how to adjust the clutch plate height.
1. Position the camshaft from the clutch arm to be perfectly flat against the bucking bar (looks like a quarter inch pin in the center of the drive sprocket on the motor). This gives you the fullest range of movement when you pull the lever.
2. Lock your clutch!
3. Remove the clutch cover on the right side of the motor, remove the locking screw holding the flower nut. Slowly back off the flower nut (CCW) until your bike rolls freely with the clutch disengaged, and put the locking screw in.
4. Give it a test ride and make sure it doesn't slip on a hill or when you're accelerating. If that's good, then lock the clutch with the motor engaged and lift the back wheel off the ground to ensure it doesn't move.
If it doesn't move at all when the clutch is locked and the wheel is off the ground, and doesn't slip when you're accelerating - you're good to go! If it does either of those, then make further adjustments on the flower nut until it is good to go.
