My 2001 Trophy 1200 has become an absolute bear to start when cold. Starter turns the motor fine and the engine will not fire but it will sputter a bit. Giving any throttle or "choke" eliminates even the sputtering. Twice I have removed the carb bank and fully cleaned each carb, especially the enrichener down tubes. When I crank the cold engine I use very minimal choke and yet I do smell gasoline. When bike doesn't start I can often return in an hour and it will start with no change in the starting procedure. Gas is fresh, valves adjusted, battery is on a tender, petcock is new, and plugs are new. I have tried all petcock positions. If and when I can get this bike started it runs flawlessly and will start right up when warm. I suspect the battery may be tired but I am looking for other ideas before I replace it. Any thoughts would be immensely appreciated since I am planning a cross country tour in May. Thanks to all.