If you dont make a mess you aint making anything. They have a website at www. Thanks members, for the advice and information, sounds like the year regards to all. Most were 4-stroke, but there were some 2-stroke engines such as the model 0; they were quite reliable, and examples can still be seen at vintage rallies around Britain. Questions on Rover Ride On Mower. It is well worth getting copies if you can.
According to the Small Engines Forum:
JAP engine, how to identify it?
Defunct aircraft engine manufacturers of the United Kingdom Defunct engineering companies of England Defunct motorcycle manufacturers of the United Kingdom Aircraft industry in London Vehicle manufacture in London Cinematography Engine manufacturers Motor vehicle engine manufacturers Motorcycle engine manufacturers Manufacturing companies based in London Manufacturing companies established in Vehicle manufacturing companies established in Manufacturing companies disestablished in establishments in England establishments in England disestablishments in England Defunct companies based in London Companies formerly listed on the London Stock Exchange British companies established in Formula One engine manufacturers. From to complete motorcycles were produced  from the development of the first overhead valve motorcycle engine to be produced in the UK. Join date time utc. I just picked up an old Ransome Reel Mower with a J. Can anyone identify this engine? Find all posts by ListerDiesel. This engine owners group has members.