I'm having a weird problem with my idle when I start the bike after being off for a short time (i.e. fuel stops). It starts great first thing in the morning, and idles just fine after warming up, but if I stop for a couple of minutes, it misses on one cylinder for about 30 seconds at idle. The missing cylinder seems to pick up if the engine is revved, but drops out again at idle. Then it settles down and everything is fine. It seems to do it reguardless of engine temp. Plugs look good and have about 2000 miles on them. Any thoughts?