It's best just to go rich( a hot start, not fuel
injected) and crack the throttle,
crank a half a dozen blades, should start if engine is OK.

Snip.
The plugs were cleaned and gapped,
Checked timing, Left mag was off by 4 degrees.
Cold start fired up on 3rd revolution.
Once the engine was hot, I had mixture rick, cracked throttle and she would not
start. Waited 2 minutes, Pumped throttle once and she started on the 3rd
revolution.
Problem solved?