1988 570 Exciter Mikuni Carb Service Bulletin
I have a 570 Exciter with what I believe are VM-38 Mikuni carbs. I bought it a few years ago and rebuilt the carbs first thing. I understand there was a Service Bulletin modifying some hoses, power valves and jet sizes. I found a "BB" pushed in one of the hoses and thought someone was messing around. Was that part of the bulletin??? Now I don't know where all the hoses are supposed to be and which one was plugged. Help.