FZR 750 R (reduced effect)

1990 Yamaha FZR 750 R (reduced effect) Technical Analysis & Specification Breakdown

At the heart of the 1990 Yamaha FZR 750 R (reduced effect) motorcycle, Yamaha utilizes a 749 cc (45.7 cu in) liquid-cooled in-line four, four-stroke layout. In factory specification, peak output is rated at 100 HP (73 kW) at 11,250 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 133.5 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 FZR 750 R (reduced effect) measures 215 kg (474 lbs) wet (curb), translating to a power-to-weight ratio of 0.47 HP/kg (2.15 kg per horsepower). The 20-liter (5.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 234 km/h (145 mph).

Within MotoLibrary's Yamaha archive, this model family spans 4 indexed model years from 1989 to 1992, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.