Well back at this thing again. Thanks to exalteduser and chevelleman. I have replaced the starter drive and now it starts fine when warm. The overrunning clutch in the drive obviously was bad.
I checked the coil resistance when cold (about 5 deg. C) and found resistance at 16K, 25K, & 47K ohms. Started and ran it for 20 minutes and then checked them again. I got 14K, 14.5K, and 19K ohms. So this looks like it could be at least part of the cold start problem. Could not find one today at a good price so ordered one and will install tomorrow. Cost in Edmonton, Canada ranged from $92 to $168!
Does anyone know for sure what the coil resistance should be? I noted Chevelleman says about 12K. This on line manual says 5-8K? See this link. My coil is identical to the ones in the photos at this link.
http://www.autozone.com/servlet/UiBr...3d8015c33d.jsp
Will post tomorrow on results,
Ron