Hi folks. I recently purchased a CB500 four 1972 USA from a friend who could not finish the project. Problem is, he bought what he thought was a tank off a K3 and had that painted for the bike but the fuel tap is missing. I ordered one from D Silver Spares but it did not fit. The thread on it was I think a 16 x 1.0mm type but I have measured the thread on the tank and it looks around 20 x 1.0mm....any suggestions ?...thanks...w399
