Originally Posted by
dirtybird
The coil will need three connections:
connection to the motor for timing.
Spark plug lead
Pigtail to ground the coil to the motor. If it does not have the grounding pigtail it needs to be mounted on the motor to provide ground
dirtybird pegged it! On the G-26 mag engine, the HV coil grounds to the engine case with one of the mounting bolts. Probably best to maintain this mounting method if at all possible.