crap. I dont suppose anyone knows the specs of the diode required do they?
I can go down the local Jaycar and pick them up. I am in Australia and dont really want to wait a week or more for it to arrive.
When I did mine I used 1N4001's and they work fine. Whilst you are at it take the rubber boot out of the head light shell that houses the warning light and turn it round 180 degrees before you put it back. Makes it easier to see as the bulb is then pointing more towards you. Whilst you are doing the diodes do the Rattlebars mod to make them brighter too.
Link the diagram is 2/3 down the page.