La réponse trouvé sur le forum ZZRbikes.com
http://zzrbikes.com/threads/40309-2004-ZZR1200-US" onclick="window.open(this.href);return false;
Ça date du 16/09/2003 et ça semble provenir du site kawasaki US.
Pour la traduction, c'est google que j'ai amélioré.
"Pour fournir un débit de carburant efficace, le ZZR1200 utilise deux pompes à carburant qui alimentent quatre carburateurs Keihin 40mm à dépression équipés du système de commande d'allumage Responsive Kawasaki Throttle (K-TRIC). À son tour, un alternateur produit plus de puissance pour alimenter les deux pompes à carburant, ainsi que les phares doubles élégants et fonctionnels. Pour un bon refroidissement, le radiateur du ZZR est équipé de deux ventilateurs."
"Double pompes à carburant
- Deux pompes à carburant fournissent un débit de carburant stable aux cylindres
- Une pompe alimente les cylindres un et deux, tandis que l'autre alimente les cylindres trois et quatre"
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Un petit copié/collé du site, histoire de pas le perdre:
INTRODUCTION
Sport touring enthusiasts know that few experiences bring as much pleasure in life as having a road map in hand, hundreds of miles of back roads and highways ahead and good motorcycle. Time seems to disappear and a lot of ground can be covered quickly on a fast, comfortable motorcycle with excellent handling.
The class-leading Kawasaki ZZR®1200 sport-touring motorcycle was made for these long-distance trips, with its powerful engine, comfortable ergonomics, stylish wind-cheating fairing and high-performance radial tires.
Kawasaki engineers based the ZZR1200´s double-overhead cam 1164cc inline-four engine after the muscular ZRX1200, but modified the ZZR´s 16-valve engine to be a stronger performer in the low- and mid-range sections of the powerband. The ZZR´s aluminum cylinders utilize chrome composite plating rather than cylinder liners to provide a lightweight package and quick heat transfer. The actual pistons feature reinforced ribs similar to those on the NINJA ZX-12R sportbike. Actuating the valves are sintered-tipped rocker arms, which ensure less wear and friction and provide optimum lubrication. Meanwhile, a balanced crank helps bring out the engine´s torquey personality.
Providing efficient fuel flow, the ZZR1200 uses twin fuel pumps that feed four Keihin 40mm downdraft carburetors equipped with the Kawasaki Throttle Responsive Ignition Control (K-TRIC) system. In turn, an alternator produces more output to power the dual fuel pumps, as well as the stylish and functional dual headlights on the ZZR. To keep things cool, the ZZR´s radiator is equipped with two fans.
While the ZZR1200´s engine performance crosses boundaries uncharted by other sport touring machines, the same can be said for its chassis. The aluminum perimeter-style frame is reinforced with internal ribbing to withstand mass miles of sport touring. Meanwhile, a steel subframe accommodates saddlebags available through Kawasaki Accessories or color-matched luggage offered by Givi.
To give the ZZR1200 the light-handling nature associated with sport-touring bikes, ball bearings are used in the steering head to maintain a light-steering feeling. Also, the lightweight swingarm is designed relatively low to improve traction. Kawasaki´s UNI-TRAK® rear suspension system produces progressive rates on the shock for an overall smooth ride.
Bringing the ZZR1200 to a stop are opposed four-piston calipers, which grip 320mm dual-discs in the front, complemented by a 250mm rear disc brake.
A comfortable riding position gives the ZZR1200 all-day touring capacity, and an attractive instrument panel displays pertinent information, including fuel level. Finishing touches include an elegant, contoured fuel tank and sleek-looking twin-beam headlights. Hollow-spoke wheels, a one-piece fender and clear, automotive-style turn signals round out the ZZR1200 sport-touring package.
FEATURES
Four-Cylinder, 16-Valve Engine
- Aluminum cylinders with chrome composite plated bores reduce weight, resist wear and offer superior heat dispersion
- Pistons feature reinforcing ribs similar to those in the NINJA ZX-12R
Downdraft Carburetors with Kawasaki Throttle Responsive Ignition Control (K-TRIC)
- A throttle-position sensor monitors engine load so that its micro-computer can determine the best ignition timing for more power and better fuel economy
Dual Fuel Pumps
- Dual fuel pumps provide a steady fuel flow to cylinders
- One pump feeds cylinders one and two, while the other feeds cylinders three and four
Liquid Cooling
- Maintains consistent engine temperatures for long engine life and sustained power during hard use
- Equipped with twin fans
Sintered-Tipped Rocker Arms
- Provide longer wear, less friction and better lubrication
Aluminum Perimeter-Style Frame
- Thick frame rails provide extra rigidity
- Rake and offset designed to provide nimble handling
- Steering head incorporates internal reinforcement ribbing
- Steel subframe accommodates aftermarket saddlebags
Bottom-Link UNI-TRAK® Rear Suspension
- Long linkage rods provide a smoother ride
- Shock features hydraulic preload adjustment and protective guard over the shaft and seal
- Swingarm positioned low to improve traction and squat characteristics, and reduce wear on the chain slipper
- Swingarm features mounts that don´t pinch the pivot when tightened
Cartridge Fork
- Comes with leak-resistant seals
Bodywork
- Includes twin-beam headlights, modern taillight and automotive-type turn signals with clear lenses
- Contoured fuel tank contributes to bike´s aesthetics
Details
- Attractive instrumentation with fuel gauge, temperature gauge and digital clock
SPECIFICATIONS
Engine: Four-stroke, DOHC, inline four, 16 valves
Displacement: 1,164cc
Starting: Electric
Bore x stroke: 79.0 x 59.4mm
Compression ratio: 10.6:1
Cooling: Liquid
Carburetion: Keihin CVKD40 x 4
Ignition: Electronic with Digital Advance and Kawasaki Throttle Responsive Ignition Control (K-TRIC)
Transmission: Six-speed
Frame: Aluminum perimeter design
Rake / trail: 25° / 4.1 in.
Suspension, front: Cartridge-style fork with preload adjustment
Suspension, rear: UNI-TRAK® system with remote reservoir shock with preload adjustment
Wheel travel, front: 4.7 in.
Wheel travel, rear: 4.7 in.
Tire, front: 120/70 x ZR17
Tire, rear: 180/55 x ZR17
Front brake: 320mm dual hydraulic discs
Rear brake: 250mm single hydraulic disc
Overall length: 85.0 in.
Overall width: 29.7 in.
Overall height: 49.0 in.
Ground clearance: 5.1 in.
Seat height: 31.5 in.
Dry weight: 520 lbs.
Fuel capacity: 6.1 gal.
Wheelbase: 59.3 in.