Kawasaki GPZ750
Type of motorcycle From Wikipedia, the free encyclopedia
Type of motorcycle From Wikipedia, the free encyclopedia
The Kawasaki GPz750 was a sport bike introduced by Kawasaki in 1982. In comparison with the KZ750, it had many updates focusing on high performance [needs context]. Changes started at the front, with tapered bearings in the steering head instead of the KZ750's ball bearings, and the upper triple clamp was changed also, giving the GPz solid aluminum clip-on handle grips instead of the traditional handlebar. A bikini fairing almost identical to the one on the GPz550 was added too. The GPz750 had increased power, with slightly higher compression, and camshafts designed to get the valves to full lift quicker, and fitting Mikuni 34mm carburetors for smoother airflow. The cylinder heads were also given a new combustion chamber, and porting and polishing from the factory. An oil-cooler was also added. The GPz750 was the quickest factory 750, as Cycle World recorded a time of 11.93 seconds at 109.62 mph (176.42 km/h) in the 1/4 mile.[1] The GPz750 underwent some significant changes in 1983. The original was based on the 1981 KZ750-E.[2] Kawasaki retired the KZ750 after 1983. The 1983 KZ750L3 was nearly identical to the '82 GPz750, but for different colors, no bikini fairing, and without the porting & polishing in the cylinder head.[3]
| |
| Manufacturer | Kawasaki |
|---|---|
| Also called | ZX750A1-3, GPz750 |
| Parent company | Kawasaki Heavy Industries |
| Production | 1982–1985 |
| Predecessor | Kawasaki KZ750-R1, Z750 (non-US) |
| Successor | GPZ750R (Liquid-cooled version) |
| Class | Sport bike |
| Engine | 738 cc (45.0 cu in), 4-stroke, transverse 4-cylinder, air-cooled, DOHC, 2 valve per cylinder |
| Bore / stroke | 66 mm × 54 mm (2.6 in × 2.1 in) |
| Power | 60 kW (80 bhp) @ 9,500 rpm (claimed)[1] |
| Torque | 65.8 N⋅m (48.5 lb⋅ft) 7,500 rpm (claimed)[1] |
| Ignition type | Electronic |
| Transmission | 5-speed |
| Frame type | Steel |
| Suspension | Front: telescoping fork Rear: aluminum swingarm, dual shock (1982) Uni-Trak (1983– ) |
| Brakes | Front: dual disc Rear: single disc |
| Tires | Tubeless, front: 110/80-18 Rear: 130/80-18 |
| Rake, trail | 28°, 100 mm (4.1 in) |
| Wheelbase | 1,500 mm (59 in) |
| Dimensions | L: 2,185 mm (86.0 in) W: 775 mm (30.5 in) H: 1,215 mm (47.8 in) |
| Seat height | 780 mm (31 in) |
| Weight | 230 kg (506 lb) (1⁄2 tank)[1] (wet) |
| Fuel capacity | 22 L (4.8 imp gal; 5.8 US gal) |
| Related | GPz750 Turbo, GPz 750R, Z 750 |
In 1983, the engine was modified further, mostly in the combustion chamber, and an all-new frame was used with Uni-Trak suspension. There were also modifications to the suspension, brakes and wheels, as well as the bodywork. The bike became more sport-oriented, but lost some of the versatility of the '82. [needs context]
The 1983 MSRP was $5,599 (US).[4]
In 1986, Kawasaki issued the new GPz 750 R (ZX750R), which in many parts was an identical twin of the GPz 900 R "Ninja" (presented 1983), just with smaller bore in the same motor.
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