Just gettin back from a trip, thanks for y'alls comments!
I know it doesn't get cold in MS, I'm actually a yankee. But the only time I have this problem is when it gets "cold" here, from October to March or so.
The longest the bike sits is a week, but that isn't the problem either. I clipped a lamp on it over night and it started right up, went to work. It was a little windy & chilly, and at my lunch break 4 hrs later I had to fight to start it again. I think it's getting worse.
If I don't use the lamp, I have to let the bike run for a few minutes before I ride. If not, I get out on the road and as soon as I hit the highway (40mph or so) the bike starts to stall out, and I have to start all over. It's cuz at that speed, the wind brings the engine temp down again.
I just filled up and am going to put some stabilizer in the tank to see if that makes a difference (not expecting it to). And I'm going to read my Clymer manual today, I promise! Got to look for these "carb warmers", as the p.o. had an air horn and 12v adapter installed.