hcccs

Well Known Member
1. Does anyone have a list specifying the differences between nozzles for MA4-SPA carbs? SB-22 calls for a replacement of nozzle 47-773 with 47-862 but what is the difference?
2. Is there a list of MS carbs and the difference between them? I have a MA4-SPA 10-5009 and have seen references in Service Bulletins for othernumbers of MA4-SPA:s. How can I tell if the SB applies to my carb or not.:confused: