Conner........you do know ittza 2-bolt, 15-min job to remove the weird 4-nipple frontmount dizzy and change the points (0.015") on the kitchen table, don't you??? Just un-snapple yer capple and letter dangle. Installation is a reversal of the removal ...except... finger start the 2-bolts and install the rotor. Rotate the rotor until the OFF-SET drive tang fits into the camshaft OFF-SET drive slot. Now tighten yer 2-bolts and re-snapple yer capple. Simple, eh?
The OFF-SET drive scheme means you can never install yer 2-bolt dizzy outta time.
REMEMBER to "polish" the INVISIBLE corrosion from between the points (0.015") after installation. Me? I clamp a clean $1-bill between the points (0.015") and pull. Iff'n yer really cheap, tear a strip from HEAVY brown paper grocery sack and use that.
Surprizingly enuff, points CORRODE when OPEN. (oxygen in air you know) Closed points do NOT corrode. Howsomevers, closed points will MELT the cheap points plastic bumper iff'n you leave the weaksister ignition switch ON.
FYI.........yer weaksister ignition switch is the cause of most 9N run problems. It goes BAD innna 'bout 15-mins just as you complain. After it cools down (30-mins) you can re-start yer 9N and it will run fer about 15-mins again. ...also... yer carb has about 5-mins of gas in the bowl. A BAD condenser usually runs fer about 1-min before weak sparkies cause engine stops.
A BAD squarecan ignition coil runs fer about 1-hr before the insulative tar melts and causes engine to stop. ........Dell, yer self-appointed sparkie-meister