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Sport · 1986

NS 400 R

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MotoLibrary Score
55 /100 Balanced
Power
72 HP
Top Speed
215 km/h
Engine
387 ccm

1986 Honda NS 400 R Technical Analysis & Specification Breakdown

At the heart of the 1986 Honda NS 400 R sport motorcycle, Honda relies on a 387 cc (23.6 cu in) liquid-cooled v3, two-stroke powerplant. In factory specification, peak output is rated at 72 HP (52.6 kW) at 9,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 186 HP per liter, the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.

On the scales, the NS 400 R measures 183 kg (403 lbs) wet (curb), translating to a power-to-weight ratio of 0.39 HP/kg (2.54 kg per horsepower). The 19-liter (5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 215 km/h (134 mph).

Within MotoLibrary's Honda archive, this model family spans 3 indexed model years from 1985 to 1987, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
186 HP/L
Power-to-Weight
0.39 HP/kg (2.54 kg/HP)
Engine
Displacement 387.0 ccm (23.61 cubic inches)
Engine Type V3, two-stroke
Engine Details V3, two-stroke
Power 72.0 HP (52.6 kW)) @ 9500 RPM
Compression 6.7:1
Bore x Stroke 57.0 x 50.6 mm (2.2 x 2.0 inches)
Fuel Control Membrane & variable discharge openings
Cooling Liquid
Transmission
Gearbox 6-speed
Final Drive Chain (final drive)
Performance
Top Speed 215.0 km/h (133.6 mph)
Wheels & Brakes
Front Tyre 100/90-16
Rear Tyre 110/90-17
Front Brakes Dual disc
Rear Brakes Single disc
Dimensions & Weight
Weight incl. 183.0 kg (403.4 pounds)
Fuel Capacity 19.00 litres (5.02 US gallons)
More from Honda
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Power
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Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
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Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

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Intermediate
Requires some riding experience.
🏁
Best For
Sport & Track
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