My bike was sitting for the last 9 years so the carbs need some work. I have a 2001 possible "California" bike is what I was told? I'm guessing that has something to do with emissions. I am looking at possibly buying a 1993 parts bike with good carbs. Looking up Carb assembly models numbers it list a "Area Code AC". Will carbs from different years interchange so I could use a 1993 carb assembly with a 2001?