You have to remove the magneto and loosen up the bolts that hold the plate. You will see on the right side of the plate where the -/+ numbers are engraved,the center line between -/+ is stock setting.where the cases mate together
is where you set the mark at,so if you turn the plate to the right to where the +5 line matches to the line where the cases
mate your good to go. hope that makes sense to ya? jeff..