for yr information guys , just made the conversion on my Heritage 2004 this week . I used a Mikuni HSR 42 carb , some Pingel gastank-accesories and the ignitionmodule of Altmann AMM-P3 . No new wiring needed , just connect the 4 coilcables , the 2 crankcensor cables and power and ground and that's it !
it took me 3 hours for the whole conversion and i am no mechanic ... and i think i dont have to explain how she rides now
... should have done it ages ago , lol