I just rembered my buddy has the same bike and I cleaned out his carbs last week. The carbs themselves are almost identical to the ones on our triumphs. if you use pats rejetting guide it will show you how to open them all up, so that you can clean them all out. On one the carbs you will notice a "growth" on the bottom be sure to take apart seprate and clean it, it looks like a diafram so that could also be the cause of the problem.
