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|photo = Z1.jpg | |photo = Z1.jpg | ||
|aka = Z1, Z900, KZ900, Z1A, Z1B | |aka = Z1, Z900, KZ900, Z1A, Z1B | ||
|manufacturer = | |manufacturer = Kawasaki | ||
|parent_company = | |parent_company = | ||
|production = 1973 - 1975 | |production = 1973 - 1975 | ||
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|predecessor = | |predecessor = | ||
|successor = [[Kawasaki KZ900A]] | |successor = [[Kawasaki KZ900A]] | ||
|class = | |class = Superbike | ||
|engine = 903cc [[air-cooled]] [[DOHC]] [[inline-four]] | |engine = 903cc [[air-cooled]] [[DOHC]] [[inline-four]] 2 valves per cylinder | ||
|bore_stroke = 66 x 66mm | |bore_stroke = 66 x 66mm | ||
|compression = 8.5:1 | |compression = 8.5:1 | ||
|top_speed = 130mph | |top_speed = 130mph | ||
|power = | |power = 81.94 HP (61.1 KW) @ 8500RPM | ||
|torque = | |torque = 53.84 ft/lbs (73.0 Nm) @ 7000RPM | ||
|fuel_system = 4x [[Mikuni]] VM 28mm [[carburetors]] | |fuel_system = 4x [[Mikuni]] VM 28mm [[carburetors]] | ||
|ignition = | |ignition = | ||
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|battery = {{battery|YUASA 12N14-3A}} 73-75 | |battery = {{battery|YUASA 12N14-3A}} 73-75 | ||
|transmission = 5-Speed Return Shift | |transmission = 5-Speed Return Shift | ||
|final_drive= {{chain|630x92}} | |||
|front_sprocket= 15T | |||
|rear_sprocket= 35T | |||
|frame = tubular steel, [[double cradle]] | |frame = tubular steel, [[double cradle]] | ||
|suspension = Front: | |suspension =Front: 36mm Telescopic forks <br> | ||
|brakes = | Rear: Dual shock, 5-way preload adjustment | ||
|brakes =Front: Single 296mm disc 2 [[piston]] [[caliper]] <br>Rear: 200mm drum | |||
|front_tire = {{tire|3.25-19}} 73-75 | |front_tire = {{tire|3.25-19}} 73-75 | ||
|rear_tire = {{tire|4.00-18}} 73-75 | |rear_tire = {{tire|4.00-18}} 73-75 | ||
|rake_trail = | |rake_trail = | ||
|wheelbase = | |wheelbase = 1498.6 mm / 59.0 in | ||
|length = | |length = | ||
|width = | |width = | ||
|height = | |height = | ||
|seat_height = | |seat_height = 812.8 mm / 32.0 in. | ||
|dry_weight = | |dry_weight = 230 kg / 507 lbs | ||
|wet_weight = | |wet_weight = 247.6 lbs / 546 lbs | ||
|fuel_capacity = | |fuel_capacity = 18 Liters / 4.7 gal | ||
|oil_capacity = | |oil_capacity = | ||
|oil_filter = K&N KN-401 | |oil_filter = K&N KN-401 | ||
|recommended_oil= K-tech 10W-40 | |||
|fuel_consumption = 45 mpg (average) | |fuel_consumption = 45 mpg (average) | ||
|turning_radius = | |turning_radius = | ||
|related = [[Kawasaki KZ900A]] <br />[[Kawasaki KZ1000A]] | |related = [[Kawasaki KZ900A]] <br />[[Kawasaki KZ1000A]]<br />[[Kawasaki Police Motorcycles]] | ||
|competition = [[Honda CB750K]] <br />[[Triumph Trident]] <br />[[Suzuki GT750]] | |competition = [[Honda CB750K]] <br />[[Triumph Trident]] <br />[[Suzuki GT750]] | ||
}} | }} | ||
The '''[[Kawasaki]] Z1''' was a Air cooled, four stroke, transverse four cylinder, DOHC, 2 valves per cylinder [[superbike]] [[motorcycle]] produced by [[Kawasaki]] from 1973 to 1975. Max [[torque]] was 53.84 ft/lbs (73.0 Nm) @ 7000 RPM. Claimed [[horsepower]] was 81.94 HP (61.1 KW) @ 8500 RPM. | |||
==Intro== | ==Intro== | ||
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== Discontinuation == | == Discontinuation == | ||
Only recently (2005) did Kawasaki announce that it would discontinue production of the police model, 25 years after the production on the consumer model and 32 years after its introduction. | Only recently (2005) did Kawasaki announce that it would discontinue production of the police model, 25 years after the production on the consumer model and 32 years after its introduction. | ||
==Engine== | |||
A 63.5mm [[bore]] x 63.5mm [[stroke]] result in a [[displacement]] of just 903.0 cubic centimeters. | |||
==Drive== | |||
The bike has a 5 Speed transmission. | |||
==Chassis== | |||
It came with a 3.25-19 front [[tire]] and a 4.00-18 rear tire. Stopping was achieved via Single disc in the front and a Drum in the rear. The front suspension was a Telescopic forks while the rear was equipped with a Dual shocks. | |||
==1973 Z1== | ==1973 Z1== | ||
<gallery mode='packed-hover'> | |||
File:1973-kawasaki-z1.jpg|left|thumb|1973 Kawasaki Z1 900 | |||
File:1973-Kawasaki-Z1-Candy-Brown-5427-0.jpg|left|thumb|1973 Kawasaki Z1 in Candy Brown | |||
File:1973-Kawasaki-Z1-Candy-Brown-5427-1.jpg|left|thumb|1973 Kawasaki Z1 in Candy Brown | |||
File:1973-Kawasaki-Z1-Candy-Brown-5427-2.jpg|left|thumb|1973 Kawasaki Z1 in Candy Brown | |||
</gallery> | |||
< | |||
*Color | *Color | ||
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==1974 Z1A== | ==1974 Z1A== | ||
<gallery mode='packed-hover'> | |||
File:1974-kawasaki-z1a.jpg|left|thumb|1974 Kawasaki Z1A 900 | |||
File:1974-Kawasaki-Z1A-Maroon-0.jpg|left|thumb|1974 Kawasaki Z1A in Maroon | |||
File:1974-Kawasaki-Z1A-900-Brown-0.jpg|left|thumb|1974 Kawasaki Z1A in Brown | |||
< | File:1974-Kawasaki-Z1A-900-Brown-1.jpg|left|thumb|1974 Kawasaki Z1A in Brown | ||
</gallery> | |||
*Color | *Color | ||
**Fuel Tank: Candy Tone Brown/Orange, Candy Tone Yellow/Green | **Fuel Tank: Candy Tone Brown/Orange, Candy Tone Yellow/Green | ||
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*Shop Manual No.: 99997-700 | *Shop Manual No.: 99997-700 | ||
Major changes for this model were the silver engine finish, redesigned tank | |||
and tailpiece markings and a stop lamp failure light in the tachometer. The | |||
idiot light cover was also changed, the warning lights were now placed in a | |||
different order. In mid 1974 there was a slight [[carburetor]] change to improve cold running. At the end of 1974 Kawasaki had produced over 80,000 units of the Z1 and [[Kawasaki Z2|Z2]]. The best gets better. | |||
==1975 Z1B== | ==1975 Z1B== | ||
<gallery> | <gallery mode="packed-hover"> | ||
Image:1975-kawasaki-z1b.jpg|1975 Kawasaki Z1B 900 | Image:1975-kawasaki-z1b.jpg|1975 Kawasaki Z1B 900 | ||
Image:1975-Kawasaki-Z1-Brown-0.jpg|1975 Kawasaki Z1 900 in Brown | Image:1975-Kawasaki-Z1-Brown-0.jpg|1975 Kawasaki Z1 900 in Brown | ||
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*Major Changes: Color and marking. Special chain provided with sealed-in grease. Automatic chain oiler discontinued. | *Major Changes: Color and marking. Special chain provided with sealed-in grease. Automatic chain oiler discontinued. | ||
Kawasaki dropped the automatic chain oiler in favor of an o-ring chain. The front forks received revised dampers and softer springs. To improve low speed running there was a new automatic ignition advance. Unlike on the trend with the H1 these changes didn't drop performance. | |||
Kawasaki dropped the automatic chain oiler in favor of an o-ring chain. The paintwork and markings were changed including larger side panel badges. The switchgear was slightly cosmetically changed and the Speedo was now in 10-mph increments. The fuel tap was changed from black to silver and the carbs were modified to improve performance. The front forks received revised dampers and softer springs. To improve low speed running there was a new automatic ignition advance. Unlike on the trend with the [[Kawasaki H1|H1]] these changes didn't drop performance. | |||
==1976 Z1== | ==1976 Z1== | ||
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== | ==Specifications== | ||
= | {| class="wikitable" | ||
|- | |||
!Make Model | |||
|Kawasaki Z1-A | |||
|- | |||
!Year | |||
|1974 | |||
|- | |||
!Engine Type | |||
|Four stroke, transverse four cylinder, DOHC, 2 valve per cylinder. | |||
|- | |||
!Displacement | |||
|903 cc / 55.1 cu-in | |||
|- | |||
!Bore X Stroke | |||
|66 x 66 mm | |||
|- | |||
!Cooling System | |||
|Air cooled | |||
|- | |||
!Compression | |||
|8.5:1 | |||
|- | |||
!Lubrication | |||
|Wet sump, trachoid pump | |||
|- | |||
!Air Filtration | |||
|Treated synthetic fiber | |||
|- | |||
!Induction | |||
|4 x 28mm Mikuni VM28SC | |||
|- | |||
!Ignition | |||
|Battery and coil | |||
|- | |||
!Starting | |||
|Electric & kick | |||
|- | |||
!Max Power | |||
|82 hp / 59.8 kW @ 8500 rpm | |||
|- | |||
!Max Torque | |||
|73.5 Nm / 54.3 lb-ft @ 7000 rpm | |||
|- | |||
!Clutch | |||
|Wet, multi-plate | |||
|- | |||
!Transmission | |||
|5 Speed | |||
|- | |||
!Final Drive | |||
|Chain | |||
|- | |||
!Primary Drive | |||
|Straight cut gears | |||
|- | |||
!Gear Ratio | |||
|1st 12.79:1 2nd 8.84:1 3rd 6.74:1 4th 5.58:1 5th 4.92:1 | |||
|- | |||
!Frame | |||
|Double tubular steel cradle | |||
|- | |||
!Front Suspension | |||
|36mm Telescopic forks | |||
|- | |||
!Rear Suspension | |||
|Dual shock, 5-way preload adjustment | |||
|- | |||
!Front Brakes | |||
|Single 296mm disc 2 piston caliper | |||
|- | |||
!Rear Brakes | |||
|200mm drum | |||
|- | |||
!Front Tire | |||
|3.25 H19 | |||
|- | |||
!Rear Tire | |||
|4.00 S18 | |||
|- | |||
!Rake | |||
|27º | |||
|- | |||
!Trail | |||
|3.75 in. | |||
|- | |||
!Dimensions | |||
|Length 2209.8 mm / 87.0 in. | |||
|- | |||
!Wheelbase | |||
|1498.6 mm / 59.0 in | |||
|- | |||
!Handlebar Width | |||
|818 mm / 32.2 in. | |||
|- | |||
!Seat Height | |||
|812.8 mm / 32.0 in. | |||
|- | |||
!Ground Clearance | |||
|170 mm / 6.75 in. | |||
|- | |||
!Dry Weight | |||
|230 kg / 507 lbs | |||
|- | |||
!Wet Weight | |||
|247.6 lbs / 546 lbs | |||
|- | |||
!Fuel Capacity | |||
|18 Liters / 4.7 gal | |||
|- | |||
!Consumption Average | |||
|48 mpg | |||
|- | |||
!Braking Distance 30 Mph - 0 | |||
|29.00 ft. | |||
|- | |||
!Braking Distance 60 Mph - 0 | |||
|126.00 ft. | |||
|- | |||
!Acceleration 0-30 Mph | |||
|2.7 sec | |||
|- | |||
!Acceleration 0-60 Mph | |||
|4.8 sec | |||
|- | |||
!Standing ¼ Mile | |||
|12.3 sec / 112 mph | |||
|- | |||
!Top Speed | |||
|135 mph | |||
|} | |||
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* http://www.motoretroillustrated.com/archive_kawasaski_z1.htm | * http://www.motoretroillustrated.com/archive_kawasaski_z1.htm | ||
{{motorcycle-stub}} | |||
{{Kawasaki}} | |||
[[Category:Kawasaki motorcycles|Z1]] | |||
[[Category:1970s motorcycles]] | |||
[[Category:Road motorcycles]] | [[Category:Road motorcycles]] | ||