A bad ground can also cause them not to blink. I had that happen on my 67 Elky. Is it just one side or both that don't blink?
The hazard blinker is in the fuze box and the directional blinker is as stated, hidden up on the right side of the steering column. It may still have a little u-bracket that it fits into making it even tougher to find. If you can see the wire colors, the directional blinker has a purple wire and a brown wire coming from the connector - the flasher will only fit one way.
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