no spark

[FiremanKyle]

Got a 42-9n 12v Neg ground, 6v coil - ran great over the winter to plow, but can't seem to get it started, not getting spark on the spark gap check. Verified the coil is good. Curious if the issue is with the ignition switch, do I need the connections all off to check the validity of it. Battery is at 12.2v, with switch on voltage is 11.2v.
I did replace the whole coil cap asm with new to no avail.
I changed the plugs a few years ago when I was temporarily electronic ignition, not anymore.
I am in Michigan and the tractor resides outdoors.
To the top side of the coil I got 4.6v with everything still connected.

Any thoughts or easy things here the experts are thinking?

 

[soaked]

Hi FiremanKyle,
First thought is to take the dist off, and pull a matchbook cover, or similar, to clean the points.

 

[Royse]

Got a 42-9n 12v Neg ground, 6v coil - ran great over the winter to plow, but can't seem to get it started, not getting spark on the spark gap check. Verified the coil is good. Curious if the issue is with the ignition switch, do I need the connections all off to check the validity of it. Battery is at 12.2v, with switch on voltage is 11.2v.
I did replace the whole coil cap asm with new to no avail.
I changed the plugs a few years ago when I was temporarily electronic ignition, not anymore.
I am in Michigan and the tractor resides outdoors.
To the top side of the coil I got 4.6v with everything still connected.

Any thoughts or easy things here the experts are thinking?

If you've got 4.6V to the coil, your switch is supplying power. That may be a little low, but it's there. Turn the switch off and it should go away.
When you turn the engine over by hand to the point it opens the points, that terminal should read battery voltage instead of 4.6V. If it does, that would tell you the points are opening. If it doesn't, they're not opening or something else is wrong in the distributor.

 

[Kondoge]

Have you done anything by accident to your 2N (9N ended In 1941 2N started In 1942) or somebody else did something while it was sitting. I doubt you would lose spark for no reason at all there's always a reason. I'm thinking moisture or rust in the distributor (if it happened randomly), take it off, note which way the rotor was pointed (helps you put it back on right) take your coil off then the cover, then the rotor, then the paper cover and look at the points, are they dirty? if yes then take a thin cardboard like a cigarette box or the corner off a $ bill and close the points on it then pull your bill/cardboard through, DO NOT UNDER ANY CIRCUMSTANCE USE SANDPAPER. if the points are pitted or chipped get new ones. the gap should be at 0.15" if it's off that would cause poor spark. However if you think it's your Ignition switch take a temporary toggle switch rated for 15 or 20 amps and temporarily wire it in, Does it work now if yes then it's the switch if not then its distributor.