Kawasaki ZR550 Zephyr
 | |
| Manufacturer | Kawasaki |
|---|---|
| Also called | ZR 550 Zephyr |
| Production | 1991 |
| Engine | Four stroke Transverse four cylinder. DOHC, 2 valves per cylinder. |
| Compression ratio | 9.5:1 |
| Transmission | 6 Spee |
| Suspension | Front: 39mm Telescopic forks Rear: Dual Kayaba shocks with preload and rebound adjustments |
| Brakes | Front: 2x 300mm discs 2 piston calipers Rear: Single 245mm disc 1 piston caliper |
| Front Tire | 110/80-17 |
| Rear Tire | 140/70-18 |
| Weight | 179 kg / 394.6 lbs |
| Fuel capacity | 15 Litres / 3.9 US gal |
| Manuals | Service Manual |
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Engine
The engine was a Air cooled cooled Four stroke Transverse four cylinder. DOHC, 2 valves per cylinder.. The engine featured a 9.5:1 compression ratio.
Chassis
It came with a 110/80-17 front tire and a 140/70-18 rear tire. Stopping was achieved via 2x 300mm discs 2 piston calipers in the front and a Single 245mm disc 1 piston caliper in the rear. The front suspension was a 39mm Telescopic forks while the rear was equipped with a Dual Kayaba shocks with preload and rebound adjustments. The ZR550 Zephyr was fitted with a 15 Litres / 3.9 US gal fuel tank. The bike weighed just 179 kg / 394.6 lbs.
Photos
Overview
Kawasaki 550 Zephyr
The Zephyr 550 was the smallest of the Zephyr
range, and in some ways ahead of its time. Launched in 1991 as a stylish
naked retro roadster, it occupied a niche later made very successful by
Suzuki's Bandit. It used the air-cooled engine from the GPZ550, de-tuned for
mid-range power, with minor cosmetic changes. The elderly engine was
installed in a good-looking rolling chassis. A box-section aluminium
twin-shock swingarm used sports-style eccentric chain adjusters, while a
classically styled fuel tank and chrome-plated exhaust system rounded off
the handsome design. The Zephyr's straight-line performance was
disappointing though: the engine that produced 48kW (65bhp) in the GPZ550
was retuned to make just 37kW (49bhp).
| Make Model | Kawasaki 550 Zephyr |
|---|---|
| Year | 1991 |
| Engine Type | Four stroke Transverse four cylinder. DOHC, 2 valves per cylinder. |
| Displacement | 553 cc / 33.7 cu-in |
| Bore X Stroke | 58 x 52.4 mm |
| Cooling System | Air cooled |
| Compression | 9.5:1 |
| Induction | 4x 30mm Keihin carburetors |
| Ignition | |
| Starting | Electric |
| Max Power | 49 hp / 37 kW @ 10000 rpm |
| Max Torque | 40 Nm / 29.5 lb-ft @ 6000 rpm |
| Transmission | 6 Spee |
| Final Drive | Chain |
| Front Suspension | 39mm Telescopic forks |
| Rear Suspension | Dual Kayaba shocks with preload and rebound adjustments |
| Front Brakes | 2x 300mm discs 2 piston calipers |
| Rear Brakes | Single 245mm disc 1 piston caliper |
| Front Tire | 110/80-17 |
| Rear Tire | 140/70-18 |
| Dry Weight | 179 kg / 394.6 lbs |
| We -weight | 206 kg / 454 lbs |
| Fuel Capacity | 15 Litres / 3.9 US gal |