Lucas ‘The Prince of Darkness’ Running Instructions 1919

Lucas , a name that strikes fear into those who go bravely into the dark.

British motorcyclists, unlike their american riders, were not keen to accept electric lighting, preferring the more primitive fire method of matches and gas. It wasn’t until 1930 when motorcyclists had that choice taken away from them when manufacturers were pressured into compulsory fitment of electric lighting as standard. So it is unusal to see early pre 1930 motorcycles with electric lighting and for those of you who are curious as to what could be fitted here is the running instructions from 1919 for the Lucas Dynamo Lighting set.

Please note that the lighting switch on page 9 would not have been screwed directly into the tank (that would be stupid wouldn’t it!) instead the tank would have to have been pre-ordered from the cycle manufacturer with the special attaching threads already in place.


And remember the riders interpretation of the Lucas light switch was  Dim – Flicker – Off!

As usual with other manuals it is in PDF format so make sure you have Adobe Acrobat Reader

Click on the picture to open it in your browser or right-click and ‘Save as’ to download it