So I pulled my carbs off and started checking everything and discovered the float valve assembly in my complaining #4 was stamped 2.5 where the other three are 2.0. Also the valve itself has about half the travel in the little plunger as the other three. What's the significance of this, anything?
1971 CB750 K1 with 7A carbs, 120/40/2.0/26
