The NSR50’s engine (designated as AC08E), is a horizontal, single cylinder, water-cooled, two-stroke engine that uses piston port injection. It has an inner diameter x stroke = 39.0x41.4 (mm), with a total internal dimension of 49CC. The maximum output is 7.2ps/10,000 rpm, and the maximum torque output 0.65kgf m/7,500rpm It has a total fuel capacity of 7.5L, with a 1.1L Oil tank, utilizing a vacuum powered oil injection pump on road-faring models The engine is kick-start, or bump-start only depending on the model. It uses a wet-clutch, cross-mesh close ratio Six-Speed transmission.
