I have had my 600 since it was new and stripped and reassembled the carbs at least 4 times with good results after letting it sit for a year or two. The first time I bent the float linkage so the fuel level would be a little higher and it helped with starting(at least I think so) I am pulling the bike out and gonna clean the carbs once again after 14 months but wonder if anyone has put one of these new hot shot carbs on? I guess I would need two so thats a little steep for a couple of summer months of riding. Is there a 1 into 2 manifold to run just one carb? It will have plenty of power for me cuz I have ridden it with the secondary carb dry from a stuck float and as long as you don't crack the secondary open it will get up to 70.