electrode and flywheel gap?

[og35891]

what is the gap it needs to be?

 

[GraveBugger]

take a business card, stik it in between the flywheel and the coil, spin the flywheel till the coil sucks up against it, then torque bolts down with a little loctite

 

[TomH]

spark plug: go big, some go as big as .045