Manuals

We previously published a parts book for the 1927 3.46hp Model 350 sv and 351 ohv models but decided to also include this catalogue as there are significant differences even though they are only 2 years apart. 1925 was the first year of the 3 speed Sturmey Archer gearbox, and internal expanding brakes, but Royal […]

The Early Carburating System. In the very early days of motorcycles, the carburetter consisted merely of a shallow tank containing petrol through which air was drawn on the suction stroke of the engine, the air bubbling through the petrol in its passage, and so taking up or carburating itself with a certain amount of petrol

A very early instruction booklet from about 1920 for the Lucas Magdyno. Basic in content (Lucas always liked to keep things simple) it covers the separate E3 Dynamo Lighting Set, as well as the Lucas Magdyno Lighting and Ignition Set. Information on the switchbox (or more commonly know as the light switch) which was mounted

A parts list for the Sturmey Archer Countershaft Gearbox covering the lightweight and heavyweight L.S. 3 speed type gearboxes. Sturmey Archer Gears from Nottingham, England, were a major supplier to the motorcycle industry for gearboxes in the 1920s, starting off much earlier providing geared rear wheel hubs. There are well detailed sectional drawings for the

With things being smaller on a motorcycle and space verses design sometimes provided difficulties on where to place things, so the combining of the magneto and generator into one unit was definitely a good idea. By 1929 generators were becoming a little more popular with the motorcycling British though for some there was still resistance