Once again good advice is needed with a couple of engines..

The accelerator pumps are the stock ones and so are the accelerator pump jets, the duration of the pumps are set to give the most amount of fuel and both of the carbs are gettin enough fuel and the accelerator pumps work ok. Can you tell me more about this transition circuit and more precise instructions to drilling the holes and before that how to check the carbs for this particular problem, this is something that I havent had to deal with any carter before.. :banghead: