My old 01 does it when its warm as well mate, I remember the first proper time I took the bike out and ever rode it (apart from in my garden) the bike started fine and of I went happy as ****. Well that lasted about half a mile in a forest road before it died on me down a long hill.
Tried everything and I couldn't get it started at all, thank fully I spotted some other ppl flying about on quads and they came and helped me out, one of the lads got on the bike and they tied it to a quad and bumped started it NP.
When my bike came back up the hill there was this amazing HUGE plume of smoke behind which lasted for about a quarter mile, turns out I had been messing about on my driveway with the choke on for months and when I had first rode the bike in the forest the choke was still on.
New NGK plug cap fitted today, went out for a 30 min journey with wet roads it seemed ok ill just need to wait until it rains again before I can properly test it. Thanx to eevryone that posted, hopefully this is the last you ll hear of the problem .