SRX 6

1990 Yamaha SRX 6 Technical Analysis & Specification Breakdown

Positioned in Yamaha's naked motorcycle lineup, the 1990 Yamaha SRX 6 utilizes a 608 cc (37.1 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 42 HP (30.7 kW) at 6,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 69.1 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 SRX 6 measures 172 kg (379 lbs) wet (curb), translating to a power-to-weight ratio of 0.24 HP/kg (4.1 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 170 km/h (106 mph).

Within MotoLibrary's Yamaha archive, this model family spans 5 indexed model years from 1986 to 1990, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.