If fuel was properly recapped, it should be fine. Warmer weather now, ...try leaning your tuning needles a bit. Turn the LSN in about 1/4 turn for a start....that may help it keep running at an idle. Also, turn your radio throttle trim up a bit to help it keep running when the tune isn't perfect. You can set it back later. Next, re-tune your HSN, and finally re-tune your LSN.

Edit: sometimes when an engine sits a long time, the carb gums up and makes life difficult. If it runs at all, it will usually clean itself, but cleaning it yourself will eliminate at least the "gummed" up" carb possibility.