Trigger-To-Pick-Up Coil Air Gap

Using a non-magnetic feeler gauge, check air gap between the trigger and the stator pole piece of pick-up coil assembly. Air gap should be 0.020 - 0.024" (0.5 - 0.6 mm).
If not to specifications, loosen retaining screws, and move advance plate to adjust gap. Tighten retaining screws, and recheck air gap.