
Build your own working four-stroke engine! In this simplified, battery-driven version of Nikolaus Otto's 1867 four-stroke engine, the pistons and crankshaft move, the fan blade spins, and the spark plugs light up to simulate timing. This Smithsonian kit, with over (100) plastic pieces, includes a small DC motor to run the engine, and an excellent 40pp instruction manual. You provide (2) "AA" batteries and an interested person eight years of age or older.
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93072 MOTOR WORKS |
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