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MotoLibrary Score
45/100Balanced
Power/Weight
0.3 hp/kg
Torque
48 Nm
Engine
553 ccm
Technical Overview
1985 Kawasaki Z 550 F Technical Analysis & Specification Breakdown
Engineered by Kawasaki for the touring motorcycle segment, the 1985 Kawasaki Z 550 F relies on a 553 cc (33.7 cu in) air-cooled in-line four, four-stroke powerplant. In factory specification, peak output is rated at 56 HP (40.9 kW) at 9,000 rpm while maximum torque reaches 48 Nm (35.4 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 101.3 HP per liter and a 1,500 rpm working window between peak torque (7,500 rpm) and peak power (9,000 rpm), 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 Z 550 F measures 184 kg (406 lbs) dry, translating to a power-to-weight ratio of 0.3 HP/kg (3.29 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,450 mm (57.1 in) wheelbase engineered for balanced agility and highway composure. The 18.5-liter (4.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
101.3 HP/L
Power-to-Weight
0.3 HP/kg (3.29 kg/HP)
Power Band Window
7,500–9,000 rpm
Engine
Displacement553.0 ccm (33.74 cubic inches)
Engine TypeIn-line four, four-stroke
Engine DetailsIn-line four, four-stroke
Power56.0 HP (40.9 kW)) @ 9000 RPM
Torque48.0 Nm (4.9 kgf-m or 35.4 ft.lbs) @ 7500 RPM
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
