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MotoLibrary Score
39/100Commuter
Power
17 HP
Top Speed
115 km/h
Engine
240 ccm
Technical Overview
1981 Yamaha SR 250 Special (reduced effect) Technical Analysis & Specification Breakdown
Positioned in Yamaha's classic motorcycle lineup, the 1981 Yamaha SR 250 Special (reduced effect) relies on a 240 cc (14.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 17 HP (12.4 kW) at 7,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 70.8 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 SR 250 Special (reduced effect) measures 135 kg (298 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.94 kg per horsepower). The 10-liter (2.6 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 115 km/h (71 mph).
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
