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The Honda H100S is a two-stroke motorcycle introduced in June 1983, alongside the original Honda H100-A, which was released to the UK in February 1980. The H100-A was built for fulfilling the role of an economical, practical, lightweight commuter machine. It was designed for riders who preferred the simplicity of the two-stroke engine.
Engine 499 cc (30 cu in), 2-stroke, four-cylinder, liquid-cooled, reed valve induction with YPVS Bore Stroke 56.4 mm × 50.0 mm (2.22 in × 1.97 in) Compression Ratio 6.6:1 Fuel System Mikuni VM26SS 26 mm (1.0 in) carburettor x 4 Lubrication Yamaha Autolube two stroke injection, transmission gear pump. Ignition
The efficiency of the two-stroke engine depends on effective scavenging, the more complete replacement of the old spent charge with a fresh charge. Apart from large diesels with separate superchargers, two-stroke engines are generally piston-ported and use their crankcase beneath the piston for compression. The cylinder has a transfer port ...
Animation of a two-stroke engine. A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston (one up and one down movement) in one revolution of the crankshaft in contrast to a four-stroke engine which requires four strokes of the piston in two crankshaft revolutions to complete a power cycle.
It combined a lightweight frame and good handling with a liquid-cooled two-stroke engine and six-speed close-ratio transmission. Although only being manufactured for four years, the "250R", as it was known, was long a primary choice for ATV racers until the resurgence of factory involvement and usage of four-stroke engines in sport ATV's ...
The headlight operates at full intensity 50-70% of the time. [2] United States and Canadian regulations require headlight modulators to include a light sensor that disables modulation when the ambient light level drops below a certain point. When this happens, the headlamps burn steadily.
Engine Type Liquid-cooled, single cylinder, two-stroke Displacement 249cc Bore and stroke 70 mm × 64.8 mm (2.76 in × 2.55 in) Compression ratio 7.2 : 1 Lubrication System Fuel and oil premixture of 20 : 1 Carburetion Mikuni VM32SS Transmission Manual Clutch, 5-speed Gearshift Pattern 1-down, 4-up Starter Kick Start
The Honda NS400R is a street-legal two-stroke sports bike produced by Honda between 1985 and 1987. The engine was a revamp and upgrade of the old Honda MVX250F.The NS400R lacked outright power and top speed against its rivals Suzuki RG 500 and Yamaha RD500LC The NS400R is Honda's largest-displacement street-legal two-stroke road bike.