GS 504 F 4 T

1986 Puch GS 504 F 4 T Technical Analysis & Specification Breakdown

Built around Puch's motorcycle platform, the 1986 Puch GS 504 F 4 T utilizes a 502 cc (30.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 27 HP (19.7 kW) at 7,700 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 53.8 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the GS 504 F 4 T measures 137 kg (302 lbs) wet (curb), translating to a power-to-weight ratio of 0.2 HP/kg (5.07 kg per horsepower). The 9.5-liter (2.5 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 130 km/h (81 mph).

Within MotoLibrary's Puch archive, this model family spans 4 indexed model years from 1985 to 1988, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.