The earlier bikes did not have a external coil, the internal coils was the only thing throwing out the spark. Often there could be corrosion on the button and spring that contacts the HT output and the spark plug lead, or it could have a bit of crap in there to mess things up. Electricity is lazy so if there is a easier way to get to ground it is going to take it, so it could be shorting out in that part on the lead to coil union.
Check that the primary wire to the points have good insulation, little break in the insulation and it can short out and lose the spark.
Are the points super clean? Give them a pass with a points file (not sandpaper,one piece of grip will give you electrical grief) and clean them after the pass of the file with brake cleaner (not carb cleaner because the lube in it will mess up the points electrically). Need to gap the points to 0,4mm and time the points opening to 1,5mm BTDC.
New condenser? Those are a known weak link on the Novi ignitions.
The antiparasite spark plug cap can also get a bad resistor over time, it can spark without one. The resistor is only for radio noise suppression, however you can only use either the cap resistor or a resistor plug, or none, but not both. NGK 5ohm cap works on the plug wire, can get that at a small motor place.
> John Ebert Wrote:
> I got a left hand 10mm tap and die along with a Metric thread file.
> Cleaned up the retaining nut and the end of the crank. I think the
> puller was the culprit in messing up the threads on the crank.
> Didn't have the tool to set the field winding so I used my calipers to
> adjust for the clearance needed for the rotor. Checked the ohm reading
> and it is 1.1ohms. Still no spark.
> Have a friend who is into mopeds stopping by in 2 weeks and I will pick
> his mind. I might have to use a fine pick. I feel it is something
> simple but I'll be damned if I can figure it out. Sometimes new eyes
> are best when looking at a problem.
> Again, thank you all for your advise.
> John in Texas