I'm looking to hear from anyone with the ( exact ) same problem I have. I have an 05 950 adventure with about 15,000 on the clock. The bike starts just like it should and it idles just like it should, you can blip the throttle and it will rev up just like it should but when you are letting out the clutch and giving it gas it will backfire and shutdown before you can get half way thru first gear. I've read a bunch of posts about bikes shutting down once a month or once in a while or when you go over a bump but nothing to match my issues exactly.
Give what you got if yours did what mine does.