It is popular with newcomers to the stationary engine hobby with un-restored examples available for as little as £25, plenty of spares and various re-manufactured parts and decals.
[1] The engines were used to power water pumps, generators, cement mixers and much more.
The fuel tank was moved from halfway up the engine to the top, and the shaft-drive magneto was replaced by a chain-driven unit in the early 1930s.
The engine was started on petrol, but could cut over to paraffin by means of a 3-way tap.
The engine in the early days was a rival to the Ruston Hornsby PB, the Bamford EV1, the short-lived Fowler P series