Haynes V-Twin Motorcycle Engine

Haynes. A working model of a V-twin motorcycle engine. This model is a greatly simplified version of a real V-twin four-stroke motorcycle engine. Comes complete with its own Haynes manual. Illuminating spark plugs. The base includes a sound chip that reproduces the noise of a V-twin engine starting and running while the model operates. Uses three AA batteries(not included). Ages 14 and over.