Intricate view of a medium displacement engine’s fuel injection system. Featuring a detailed cutaway of the pump body, timing shaft, and pumping pistons, this trainer includes a pneumatic speed governor with a diaphragm-controlled mechanism, screw spring, and adjustable internal lever. It operates manually via a crank handle and incorporates a feeding pump for continuous fuel delivery. The model is constructed from light alloy and is designed to enhance understanding of fuel injection and speed regulation in automotive engines.