I dare to bring this topic up again. I have had my '04 puke gas from the carb ever since I bought it about 30 months ago. Summer, Winter it did not matter, it puked. That is until recently. When I put the MaXair filter on, rejetted and adjusted the float bowl. Dont know which one did the trick. Was it the openness of the jugs allowing more air to cool everything? Was it the rejetting? Was it the float bowl adjustment? Dunno. All I know is that my bike no longer pukes!
YUP,i stated that very fact and info many times here in RSC since late 2009 that i found if you remove either the lrg stock air cleaenr assembly and install a smaller one or remove the lrg elc fuel pump and fuel filter assembly doing either or espcially doing both substatially increases cooling inbetween the cyl's of the metal fuel line inbetween the jugs and the carb-floatbowl too which stops carb puke in its tracks.
But for the people retaining the lrg stock aircleaner assembly and elec f-pump-fuel filter assembly you must insulate the metal fuel lines eps inbewteen the cyls-jugs/carb's float bowl/metal case of elec fuel pump/entire fuel system in general with the proper space age type 2k deg insulating material to stop carb puke with a completely stock setup.