[Farmall] cub j4 magneto

[john hall]

Assuming you'll pull the mag off, fix it an put it right back on here is 
what I would do. Hand crank the engine and stop just as soon as you hear the 
impulse click. Pull the cap and mark where the rotor is relative to the mag. 
Then make two precise marks to show alignment between the magneto frame and 
the engine. Pull the mag and fix it, line up the rotor, line up the magneto 
to the engine and you are ready to go.
There are only two rules:
1) make sure the marks are something you can see and that won't wipe off.
2) do not turn the engine.

For safety's sake I try not to hand crank an engine that has had the mag 
removed until I know it is in time. Use the starter or tow it.

John Hall