2002-2005 Yamaha WaveRunner XLT800 Service Manual

WaveRunner XLT800 jet pump unit, digital CDI ignition, and variable oil injection system. Complete specifications, electrical diagnostics, and maintenance procedures. PN F1F-28197-ZD-C1

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Document Details

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Document Number / Seller:
25019 / Lisa Clark
File Size:
16.68 MB
File Type:
PDF
Language:
English, French, German, Spanish
Printable:
Yes
Category:
Personal Watercraft (PWC)
Last updated / verified
Jul 21, 2025

Models Covered & Key Technical Specifications

Yamaha WaveRunner XLT800 — 2002–2005 Applied Digital Registry | XLT800 File.

  • Authorized Fastener Specs: The cylinder head fastening requirement specifies 10 bolts arranged in a proper sequence and tightened in two stages, establishing a secure mechanical assembly Sequences.
  • Critical Reservoir Specs: For fuel system reliability, the fuel tank capacity reaches 70 L (18.5 US gal, 15.5 Imp gal) defining the operational fuel reserve Requirements.
  • Operational Spacing Data: The carburetor throttle valve clearance yields 4–7 mm (0.16–0.28 in) for proper engine idle adjustment Baseline.
  • Established Electrical Load: The battery system produces 12 V, 19 Ah capacity with generator output rating at 7–9 A @ 6,000 r/min Threshold.
  • Measured Production Rate: The jet pump impeller displacement specifies 784 cm³ (47.8 cu. in) with maximum output of 88.3 kW (120 PS) @ 7,000 rpm Mapping.
  • Maximum Securement Values: The cylinder bore tolerance dictates 80.000–80.018 mm (3.1496–3.1503 in) diameter with compression ratio of 6.6:1 Configuration.

Professional Workshop Service Manual & Technical Specifications

Certified Specification Installation Manual: Personal Watercraft (PWC) Official Yamaha WaveRunner XLT800 2002-2005 Service & Repair Manual - Comprehensive Diagnostics & Maintenance Overhaul-Reference

Component-Focus: WaveRunner XLT800 (2002-2005) // Technical-Benchmarks: Engine, Fuel, Jet Pump, Electrical Systems Logic // Component-Focus: Multilingual Technical Documentation with Complete Service Coverage.

Component Rating Calibration-Data
Engine Unit 784cc 2-Stroke Complete specifications provided
Fuel System Dual Carburetors Jet sizing and adjustment data included
Jet Pump Axial Flow Single Stage Impeller clearance specifications documented
Electrical System 12V CDI Digital Ignition Voltage and resistance reference values included
Power Unit Systems Variable Oil Injection All service parameters documented

Documentation sections include comprehensive coverage of engine disassembly procedures, fuel system maintenance specifications, jet pump unit operations, electrical diagnostic procedures, and hull assembly guidance. The manual covers control system cable adjustments, spark plug identification standards, battery inspection protocols, and periodic service intervals. Specifications for cylinder bore measurements, piston clearances, and bearing inspection procedures are fully documented. The resource provides wiring diagram references, fuel and oil system layouts, cable routing information, and component identification tables across all major systems.

Engineered Threshold

Reference data is included for throttle cable synchronization, carburator adjustment sequences, and fuel system component specifications. The documentation provides identification markings for cylinder and piston combinations, ensuring proper component selection during reassembly. Safety procedures and self-protection guidance precede all major service sections, with special tool requirements clearly identified for tasks requiring precision equipment.

Advanced Standard

Alignment specifications are included for jet thrust nozzle positioning, steering cable joint calibration, and QSTS control system setup. Reed valve inspection procedures document thickness measurements, valve stopper height settings, and warpage limit tolerances. The manual covers YPVS valve assembly inspection, oil seal positioning data, and carbon deposit elimination techniques for engine head and valve surfaces.

Advanced Nexus

Diagnostic procedures are covered for battery electrolyte level checking, specific gravity testing, and charging current specifications. The documentation guides users through fuel pump inspection, diaphragm evaluation, and fuel filter assessment protocols. Crankcase installation procedures reference gasket maker application standards and crankshaft rotation verification methods.

Technical Framework

Wiring diagrams are provided for electrical box connections, battery lead routing, generator output circuits, and ignition system wire harness paths. The manual documents torque specifications for the flywheel magneto assembly to ensure proper mechanical fastening and alignment during installation. Bearing inspection techniques, including deflection measurement procedures and side clearance assessment methodologies, are comprehensively documented with tolerance ranges for all rotating components.

Core Benchmarks

This service manual documents torque specifications for engine, jet pump, and hull fastening systems to ensure proper assembly and reliability. The resource organizes nine major chapter sections covering general information, specifications, periodic inspection protocols, fuel system operations, power unit assembly, jet pump mechanics, electrical system architecture, hull and hood assembly, and troubleshooting analysis. Complete chapter sequences support systematic maintenance of the WaveRunner XLT800 personal watercraft across all operating systems and components.

FAQ

Calculate the **precise** fuel tank reserve capacity? keyboard_arrow_down

12 liters (3.2 US gallons, 2.7 Imperial gallons) is the reserve capacity specified for the XLT800 fuel system, ensuring emergency operational capability when primary fuel supply is depleted.

What values establish the **proper** YPVS cable slack specifications? keyboard_arrow_down

0.5–1.5 mm (0.02–0.06 in) slack measurement is required for correct YPVS cable operation, with initial checks performed after engine start and stop cycles to verify alignment with the pulley holes.

Assess the **standard** oil tank grease capacity for the intermediate housing? keyboard_arrow_down

33.0–35.0 cm³ (1.11–1.18 oz) is the specified grease fill capacity for the intermediate housing, documented in maintenance specifications on page 3-18 of the periodic service section, requiring Yamaha marine grease or equivalent water-resistant lubricant for proper jet pump operation.

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Reviews (5)

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The exploded diagrams are especially useful for visual learners. Excellent manual for anyone with a WaveRunner!
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Had a question about the manual, and their support responded quickly and professionally. Great experience!
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The troubleshooting tips are incredibly helpful. I was able to fix a few issues on my own thanks to this guide. Highly recommend!
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Rated 5 out of 5 stars
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This service manual has been a game-changer for my maintenance routine. Highly detailed and easy to follow!