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I tried adjusting the pilot screws up in both directions and it made no difference except the exhaust started getting a whump whump sound to it.
Adjusting the pilot screws up leans the mixture. Is that what you were trying to achieve? Even at 3.75 turns the bike should run and idle (maybe a little rough). The bike should have ran fine with the new boots set up the way it is.
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I thought the next step was to again check the plugs to see if they went from lean to rich and if so put the 45 pilot jet in.
I am again open to input here.
If the plugs went from lean to rich....going from 42 to 45 pilots will richen things up again???
Something happened when you opened up your carbs. Now you have to find it. I wouldn't change anything in terms of needles, shims or pilots because the bike ran well before the boots were cracked. As stated, check the float heights (might have been messed up when carbs opened), needles back in place properly, diaphragm rubbers in place properly and not pinched, and anything else that might have been touched when the carbs were opened.
12 Rocket Roadster
03 Bonneville America
69 BSA Firebird Scrambler
73 Yamaha TX 750
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