I’m not sure if this helps or not but I pulled out my two horse to see what happens to the ground wire while advancing the throttle.
At full throttle, it’s making contact at the top of the exhaust cover.
At half speed its hanging up on one of the hood or tank bolts
while at low speed it’s clear but almost touching the cover.
The plug wire is clear at all speeds
while the ohm reading is constant thru the full travel of the mag plate.
