Damn, those did come clean! I ended up ordering the mikuni high flow pumps since they can be rebuilt and were half the cost, but it is a pain to have to make new mounting brackets.
Did you block off one of the 1/4 outlets of the high flow pump and just run one to both carbs or get a Y or T from the two 1/4 outlets into a single 5/16?I put the high flows in my boat, night and day difference. Starts much easier after sitting for a week or so.
Looking great! I believe the issue with your accelerator pumps will be partly due to the missing check valves. I’m using a set of aftermarket check valves.
If you find a source for the OEM check valves I would be interested in getting a couple.