Chosen Solution

The head lights work fine. The fuse is good and so are the bulbs.

Hi @mikeb007 , Have you checked that the power is there at the tail light bulb connector when they are turned on? If it is and they are not working, have you checked that the earth connection to the tail lights is OK? Use a DMM’s Voltmeter function to check for power and a DMM’s Ohmmeter function to test the earth