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| {{DISPLAYTITLE:{{PAGENAME}} Zephyr 550: history, specs, pictures}}
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| {{Motorcycle
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| |name = Kawasaki ZR550 Zephyr
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| |photo = Kawasaki-Zephyr-550.jpg
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| |aka = Zepher 550, ZR 550 Zephyr
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| |manufacturer = Kawasaki
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| |parent_company =
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| |production = 1990 - 1999
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| |model_year =
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| |predecessor =
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| |successor =
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| |class = Road
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| |engine = 553[[cc]] [[Four-stroke]] [[inline-four]] cylinder. [[DOHC]], oil-cooled, 2 valves per cylinder.
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| |bore_stroke = 58.0mm x 52.4mm <ref name="owners">{{cite book|title=1990 Kawasaki EL250E owners manual|publisher=Kawasaki}}</ref>
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| |compression = 9.5:1
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| |top_speed = 99 mph (160 km/h)
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| |power = 48.95 HP (36.5 KW) @ 10000RPM
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| |torque = 29.5 ft/lbs (40.0 Nm) @ 6000RPM
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| |fuel_system = 4 30mm Keihin CVK30 carburetors
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| |ignition =
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| |spark_plug = {{sparkplug|NGK DR9EA}} '91<ref name="owners" />
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| |battery = {{battery|YUASA YB12A-A}} '91
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| |transmission = Gear box: 6-speed <br>
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| Clutch: wet plate <br>
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| |final_drive={{chain|520x108}}
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| |front_sprocket=16T
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| |rear_sprocket=41T
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| |frame =
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| |suspension =Front: 39mm Telescopic forks <br>
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| Rear: Dual Kayaba shocks with preload and rebound adjustments
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| |brakes =Front: 2x 300mm discs 2 [[piston]] [[calipers]] <br>Rear: Single 245mm disc 1 piston caliper
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| |front_tire = {{tire|110/80-17}}
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| |rear_tire = {{tire|140/70-18}}
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| |rake_trail =
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| |wheelbase = 1435 mm (56.5 in)
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| |length = 2080 mm (84.25 in)
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| |width = 755 mm (29.7 in)
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| |height = 1095 (43.11 in)
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| |seat_height =
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| |dry_weight = 179 kg / 394.6 lbs
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| |wet_weight = 206.0 kg
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| |fuel_capacity = 3.96 Gallon (14.98 Liters)
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| |fuel_consumption = 4.12 liters/100 km (24.3 km/l or 57.09 mpg)
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| |oil_capacity = 3.0 L (3.2 US qt)
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| |recommended_oil = K-tech SAE 10W-40
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| |oil_filter = {{oilfilter|K&N KN-401}}<ref name="kl_2019">{{cite book|title=2019 K&L Supply Co Catalog|publisher=[https://www.klsupply.com/ K&L Supply Co]|date=2019}}</ref>
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| |turning_radius =
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| |related = [[Kawasaki GT550]] <br />[[Kawasaki ZX550A]]
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| |competition =
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| |manuals = [[:File:1990 Kawasaki ZR550-B2 owners.pdf]]
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| |air_filter= {{airfilter|K&N KA-0850}} `90-99<ref name="kl_2019">{{cite book|title=2019 K&L Supply Co Catalog|publisher=[https://www.klsupply.com/ K&L Supply Co]|date=2019}}</ref>
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| }}
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| The '''[[Kawasaki]] ZR550B Zephyr 550''' was a in-line four, [[four-stroke]] Road [[motorcycle]] produced by [[Kawasaki]] in 1990. It could reach a top speed of 137 mph (220 km/h). Claimed [[horsepower]] was 48.95 HP (36.5 KW) @ 10000 RPM.
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|
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| == Overview ==
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|
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| 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
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| Suzuki's Bandit. It used the air-cooled engine from the [[Kawasaki ZX550A|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 aluminum twin-shock swingarm used sports-style eccentric chain adjusters, while a
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| 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 returned to make just 37kW (49bhp).
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|
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| ==Engine==
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| The engine was a oil & [[air cooled]] in-line four, four-stroke. A 58.0mm [[bore]] x 52.4mm [[stroke]] result in a [[displacement]] of just 553.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin [[cam]] (dohc).
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|
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| ==Drive==
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| The bike has a 6-speed transmission. Power was moderated via the wet plate clutch.
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|
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| ==Chassis==
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| 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 Liters / 3.9 US gal fuel tank. The bike weighed just 179 kg / 394.6 lbs.
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| == Photos ==
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| <gallery mode='packed-hover'>
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| File:Kawasaki-Zephyr-550.jpg|600px|Kawasaki ZR550 Zephyr
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| File:Kawasaki-Zephyr-550-1.jpg|600px|Kawasaki ZR550 Zephyr
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| File:kawasaki-zephyr-550-1991-1998-3.jpg|600px|1991 - 1998 Kawasaki Zephyr 550
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| File:kawasaki-zephyr-550-1991-1998-2.jpg|600px|1991 - 1998 Kawasaki Zephyr 550
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| File:kawasaki-zephyr-550-1991-1998-0.jpg|600px|1991 - 1998 Kawasaki Zephyr 550
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| </gallery>
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|
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| ==Specifications==
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| {| class="wikitable"
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| |-
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| !Make Model
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| |Kawasaki 550 Zephyr
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| |-
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| !Year
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| |1991
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| |-
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| !Engine Type
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| |Four stroke Transverse four cylinder. DOHC, 2 valves per cylinder.
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| |-
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| !Displacement
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| |553 cc / 33.7 cu-in
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| |-
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| !Bore X Stroke
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| |58 x 52.4 mm
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| |-
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| !Cooling System
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| |Air cooled
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| |-
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| !Compression
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| |9.5:1
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| |-
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| !Induction
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| |4x 30mm Keihin carburetors
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| |-
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| !Ignition
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| |-
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| !Starting
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| |Electric
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| |-
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| !Max Power
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| |49 hp / 37 kW @ 10000 rpm
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| |-
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| !Max Torque
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| |40 Nm / 29.5 lb-ft @ 6000 rpm
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| |-
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| !Transmission
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| |6 Spee
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| |-
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| !Final Drive
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| |Chain
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| |-
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| !Front Suspension
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| |39mm Telescopic forks
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| |-
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| !Rear Suspension
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| |Dual Kayaba shocks with preload and rebound adjustments
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| |-
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| !Front Brakes
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| |2x 300mm discs 2 piston calipers
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| |-
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| !Rear Brakes
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| |Single 245mm disc 1 piston caliper
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| |-
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| !Front Tire
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| |110/80-17
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| |-
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| !Rear Tire
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| |140/70-18
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| |-
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| !Dry Weight
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| |179 kg / 394.6 lbs
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| |-
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| !We -weight
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| |206 kg / 454 lbs
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| |-
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| !Fuel Capacity
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| |15 Liters / 3.9 US gal
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|
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| |}
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| ==1990== | | ==1990== |
| [[Image:1990-kawasaki-zr550-b1.jpg|left|thumb|1990 Kawasaki ZR550-B1]] | | [[Image:1990-kawasaki-zr550-b1.jpg|left|thumb|1990 Kawasaki ZR550-B1]] |
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| ==1991== | | ==1991== |
| [[Image:1991-kawasaki-zr550-b2.jpg|left|thumb|1991 Kawasaki ZR550-B2]] | | [[Image:1991-kawasaki-zr550-b2.jpg|left|thumb|1991 Kawasaki ZR550-B2]] |
| [[Image:Zephyr-34.jpg|left|thumb|1991 Zephyr ZR550-CAN]]
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| [[Image:Zephyr-40.jpg|left|thumb|1991 Zephyr ZR550-CAN]]
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| <br style="clear: left"/> | | <br style="clear: left"/> |
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| *Service Manual No. - 99924-1136-02 | | *Service Manual No. - 99924-1136-02 |
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| | | [[Category:Kawasaki motorcycles|ZR550B]] |
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| ==In Movies==
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| * [https://motopixel.org/pixel/blue-bloods#kawasaki-zr550b-zephyr Blue Bloods]
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| * [https://motopixel.org/pixel/khamsa#kawasaki-zr550b-zephyr Khamsa]
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| * [https://motopixel.org/pixel/stingers#kawasaki-zr550b-zephyr Stingers]
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| == References ==
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| {{reflist}}
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| {{motorcycle-stub}} | | {{motorcycle-stub}} |
| {{Kawasaki}}
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|
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| [[Category:Kawasaki motorcycles|ZR550B]]
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| [[Category:Kawasaki ZR series]]
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|
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| [[Category:1990s motorcycles]]
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