I am refurbing a 1971 CB500K0 that appears to have a CB550K3 air filter case. (It has the recirculating gubbins in the bottom). It is missing the air box to carb rubbers and, from reading various posts, it would appear the CB500K0 & CB550K1 & 2 rubbers are different from the CB550K3 ones. What’s the different and what ones to I need to buy for my situation?
Many thanks
Raymond