Kawasaki Jet Ski 800 SX-R JS800-A1 Service Manual

Comprehensive 2003 Kawasaki Jet Ski 800 SX-R (JS800-A1) service manual covering engine removal, fuel system, electrical system, and more. Publication C4085-91017.

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Kawasaki Models Covered & Key Technical Specifications

Models: Kawasaki Jet Ski 800 SX-R (JS800-A1)
Build Years: 2003
Technical Data:

  • Engine type: 2-stroke, 2-cylinder, crankcase reed valve, water cooled
  • Engine displacement: 781 mL (47.7 cu in.)
  • Maximum horsepower: 58.85 kW (80 PS) @ 6,250 rpm
  • Maximum torque: 94.2 N-m (69.5 ft-lb) @ 5,750 rpm
  • Carburetion system: MIKUNI BN40-38 x 2
  • Ignition system: Magneto CDI (Digital)
  • Battery capacity: 12 V 18 Ah
  • Idle speed (in water): 1,250 +/- 100 rpm
  • Cylinder compression: 892–1,372 kPa (129–199 psi)
Technical Specifications
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Document Number / Seller:
30717 / Elizabeth Gomez
File Size:
47.21 MB
File Type:
PDF
Language:
Pages:
254
Printable:
Yes
Category:
Jet Ski
Last updated / verified
Sep 21, 2025

Kawasaki Manual Features & Content Preview

2003 Kawasaki Jet Ski 800 SX-R Technical Documentation

  • Covers the 2003 Kawasaki Jet Ski 800 SX-R (JS800-A1), the performance stand-up watercraft powered by the 781 mL 2-stroke twin-cylinder engine
  • Original OEM publication, first edition, covering the JS800-A1 production year
  • Contains 56 detailed exploded-view diagrams with corresponding torque values and 254 pages of technical reference data
  • Delivered as a direct download the moment payment clears
  • Indexed PDF search covers every chapter and appendix
  • This 2003 service publication is the authoritative reference for the JS800-A1, documenting the specific dual-Mikuni BN40-38 carburetor configuration and the digital CDI ignition system

Manual Content Summary

This 2003 Kawasaki Jet Ski 800 SX-R service manual provides technical data and assembly specifications for the JS800-A1 stand-up watercraft. The document includes detailed sections on the engine top end, exhaust system, fuel system, drive system, and electrical components. The content flows through system-specific chapters that outline technical parameters for the 2-stroke engine, pump and impeller assembly, and hull maintenance. Technicians and owners will find extensive reference data for fasteners, linkage adjustments, and internal engine clearances.

Specification Highlights

The 2003 Kawasaki Jet Ski 800 SX-R engine displacement is documented at 781 mL. Cylinder head bolt torque values are specified at 29.4 Nm (22 ft-lb) in a multi-stage sequence. Carburetor mounting bolt torque is 18 Nm (13 ft-lb). The standard battery capacity for the 2003 Kawasaki Jet Ski 800 SX-R is 12 V 18 Ah. Piston ring end gap is 0.25–0.40 mm as standard. what an OEM service publication covers provides further insight into the technical structure of this manual. Note: All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. Reference only — always consult a certified technician before performing service on this equipment. An official 254-page Kawasaki OEM service manual covering the 2003 Kawasaki Jet Ski 800 SX-R (JS800-A1), documenting engine, chassis, electrical, and fuel-injection specifications for this stand-up watercraft build.

Manual FAQ, Purchase & Download Details

Which system chapters are featured in the 254-page service manual for the 2003 Kawasaki Jet Ski 800 SX-R? keyboard_arrow_down

Manual includes comprehensive chapters covering the fuel system, engine top and bottom ends, electrical system, and drive systems. It also features dedicated sections for pump and impeller components, handle pole, steering, and hull maintenance.

Are there technical reference tables available for tightening torques and periodic maintenance intervals? keyboard_arrow_down

Yes, the manual contains detailed specification tables for fastener tightening torques, periodic maintenance charts, and unit conversion data to assist with general technical references.

Is there information regarding component assembly and structural layouts within the document? keyboard_arrow_down

Manual contains exploded view illustrations that show the positioning of components within various systems. These diagrams are located after the table of contents in most chapters to help visualize system structures. Technical labels within these views indicate where specific assembly agents like locking compounds or lubricants are referenced.

What level of coverage is provided for the engine and electrical equipment sections? keyboard_arrow_down

Document provides extensive technical data, including bore and stroke specs, ignition system details, and battery capacity ratings.

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