hi again guys, its been a while but im back. ok i'll try and make it brief. the bike is a xvs650 and every now and then (maybe a dozen times in the last 4 months) when i shift from 1st to 2nd she cuts out, sometimes i can roll start her or i just use the starter. it only happens once and then shes fine. she doesn't surge or jolt or anything just cuts out. ive been told it could be because she's cold or air/fuel mixture. i don't think its air/fuel coz it doesn't happen all the time but on the same note shes not always cold. has anyone got any ideas ????