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MotoLibrary Score
47/100Balanced
Power/Weight
0.23 hp/kg
Top Speed
165 km/h
Engine
345 ccm
Technical Overview
1970 Yamaha R 3 Technical Analysis & Specification Breakdown
Engineered by Yamaha for the classic motorcycle segment, the 1970 Yamaha R 3 utilizes a 345 cc (21.1 cu in) air-cooled twin, two-stroke layout. In factory specification, peak output is rated at 36 HP (26.3 kW) at 7,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 104.3 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the R 3 measures 154 kg (340 lbs) wet (curb), translating to a power-to-weight ratio of 0.23 HP/kg (4.28 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).
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.
