Bonneville America Forums Forums Technical Forums General Tech Carb Balancing

They usually come from the dealer a bit outta wack. The factory just builds both carbs exactly the same and ship to the triumph factory who mounts them straight on the motor. They don't flow bench them or anything. Mount them up and sent em out. Any way all that stuff above is why I converted to a single carb.

you know valve adjustment need to be correct before carb balancing. If you valves on the one side are past tolerance on the high side and the valves on the other are out of tolerance on the low side it will affect the vacuum that those cylinders pull.