400 S

1984 Moto Morini 400 S Technical Analysis & Specification Breakdown

Engineered by Moto Morini for the motorcycle segment, the 1984 Moto Morini 400 S features a 396 cc (24.2 cu in) air-cooled v2, four-stroke configuration. In factory specification, peak output is rated at 37 HP (27 kW) at 8,040 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 93.4 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the 400 S measures 156 kg (344 lbs) wet (curb), translating to a power-to-weight ratio of 0.24 HP/kg (4.22 kg per horsepower). The 15-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 165 km/h (103 mph).

Within MotoLibrary's Moto Morini archive, this model family spans 4 indexed model years from 1982 to 1985, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.