Kawasaki Z1000 ZR1000-A1/A2 Service Manual (2003–2004)

The Kawasaki Z1000 covered by this publication is the early ZR1000-A series, beginning with ZR1000-A1 for 2003 and continuing with ZR1000-A2 for 2004 in this manual revision. Kawasaki's official 2003 Z1000 Owner Center page identifies the first covered model as ZR1000-A1, matching the factory Model Application table. Kawasaki's 2005 parts catalog identifies the following model year as ZR1000-A3, which is outside the application of this uploaded -03 service-manual revision.

The motorcycle uses a 953 cc fuel-injected naked-bike inline-four: a liquid-cooled, four-stroke DOHC four-cylinder engine with a 77.2 × 50.9 mm bore and stroke and 11.2:1 compression ratio. Fuel delivery is by four Keihin TTK38 throttle bodies with Kawasaki DFI. Factory specifications list up to 93.4 kW (127 PS) at 10,000 rpm and 95.6 N·m at 8,000 rpm for applicable markets, with lower output figures shown for some regional versions. The lubrication system is wet-sump with an oil cooler, and total engine-oil capacity is listed as 3.8 L.

Power passes through a wet multi-disc clutch and six-speed constant-mesh return-shift transmission to a chain final drive with a 2.625 reduction ratio. The chassis is a tubular diamond design with 24-degree rake, 101 mm trail and a 1,420 mm wheelbase. Suspension consists of an upside-down telescopic fork with 120 mm wheel travel and Uni-Trak rear suspension with 138 mm travel. The motorcycle uses 120/70 ZR17 front and 190/50 ZR17 rear tubeless tires, dual front discs and a single rear disc. Factory dimensions include an 820 mm seat height, 18 L fuel tank and 198 kg dry mass.

This 515-page publication is a third-edition factory service manual dated August 25, 2003. Its 17-chapter structure covers periodic maintenance, DFI diagnostics, cooling, engine, clutch, transmission, wheels, final drive, brakes, suspension, steering, frame and electrical systems. The Model Application page at the end lists only 2003 ZR1000-A1 and 2004 ZR1000-A2 and identifies part number 99924-1310-03, so the previous 2005–2006 year tags are intentionally removed. For related documentation, browse the Kawasaki Z1000 manual category.