That is quite a rig, Craig.
Well, I had ten minutes today to check on the 149. It had 12 volts at the coil, I checked it again, and it was solid. So I squirted some starting fluid in it, and she fired right up (the "she" is intentional). Then it died, same as before.
But this time, I remembered that I had shut the gas off at the tank yesterday, because . . . I had found the fuel filter installed with the "FLOW" arrow pointing at the tank, so I turned it around. Now what kind of fool would have installed a gas filter backwards like that?
After I turned the gas on, I squirted a second burst of starter fluid (which I wouldn't recommend, it knocked twice the second time I started it), and she took off and purred. Ran it up to full RPM, never stumbled, got the ammeter hopping on "0" and shut it off in order to make my appointment.
Long story short (too late) I'm not sure why it wouldn't start the other day. I think "she" was just teasing me; but she got what she wanted, I burned two vacation days getting her running this year. Still need to put the points cover back on, clean the sponge that goes around the air cleaner, PM the battery and top off the hydrostatic fluid, but otherwise, she seems ready to go another season.
Edit: Steve et al. Safety is Job One, although I admit, it can get pretty ridiculous at times the length to which some industrial concerns take the stuff.