As lomg as it has the stock rev box on it and the slow jet bumped up one size in the fridged cold it will start with no problems.I found whith a white bros rev box they wont start in cold weather.But all i had to do was change the rev box back to stock anfd it started everytime.Big Gun claimes that there rev box starts in cold weather with no problems.I beilieve the stock slow jet is a 38 and if i remember right i bumped up to a 42.I never had a problem starting my 300ex no matter how cold it was but the 400 was a little more trouble but its a honda it always starts.......Chris
Kasper Racing
Mikes Cycle Shop
XFR Extreme fabrication racing