Just started my first cafe project today and all ready ran into some trouble. LOL I saw the bike this morning and it was running when I got there. The bike looked and sounded great, it had no major problems with it. A couple hours later when I got it into the garage, we went to start it up again and got no where. Put some fresh fuel in, worked the choke, and nothing but a few backfires. Are there any tips or special techniques to starting these bikes?