1996 Yamaha WB760U WaveBlaster II Jetski Service Manual
WB760U detailed fuel system tuning — carburetor settings, jet specifications (Main Jet 135/137.5, Pilot Jet 115), and oil injection procedures with part numbers LIT-18616-01-47, 90890-06752.
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Sample pages from the 1996 Yamaha WB760U WaveBlaster II Jetski Service Manual manual
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Models Covered & Key Technical Specifications
Yamaha WB760U WaveBlaster II — 1996 Licensed Dossier for Commercial Resource Packet.
- Nominal Locking Torques: Flywheel bolt is configured at 70 Nm (7.0 m·kg, 50 ft·lb) peak fastening benchmark Requirements.
- Prescribed Containment Volume: For fuel tank capacity, 40 L (10.6, 8.8 US/Imp gal) represents the main reservoir range Sequences.
- System Running Clearance: Impeller clearance is established at 0.3–0.4 mm (0.01–0.02 in) operational baseline Specifications.
- Technical Heat Tolerance: The engine thermo switch limits 90–96°C (194–205°F) for overheat protection Threshold.
- Standard Weight Data: Dry weight maintains 180 kg (397 lb) total vessel mass Baseline.
- Defined Threaded Fastener Data: Cylinder head bolts indicate M8 @ 36 Nm (3.6 m·kg, 26 ft·lb) assembly guidelines Requirements.
Professional Workshop Service Manual & Technical Specifications
Functional Engineering Technical Manual: Personal Watercraft (PWC) Essential Yamaha WaveBlaster II WB760, WB760U Jetski Service Manual - Comprehensive Repair Guide Manual-Nexus
Operational-Framework: Yamaha WB760U (1996) // Engine-Type: 2-Stroke, Water-Cooled Reed Valve Logic // Operational-Framework: 144 pages, 19 chapters, digital CDI ignition system.
| Specification | Value | Framework |
|---|---|---|
| Document Pages | 144 | Complete reference material included |
| Engine Type | 2-Stroke, Water-Cooled | Technical specifications documented |
| Ignition System | Digital C.D.I. Magneto | Wiring diagrams and adjustment data provided |
| Propulsion | Jet Pump (Axial Flow, Single Stage) | Component removal/installation procedures included |
| Displacement | 754 cc (46.02 cu. in) | Bore and stroke measurements documented |
Service procedures are grouped by Reed Valve, Exhaust Ring, Cylinder Head, Piston, Engine Unit Removal, Flywheel Magneto, Electrical Unit, Starter Motor, Crankcase, Crankshaft, Intermediate Housing, Jet Pump Unit Removal, Deflector/Nozzle/Duct, Impeller and Drive Shaft, and Cooling and Bilge System, merging Electrical components with Charging system considerations, coordinating Hull and Hood structures, and encompassing Trouble Analysis protocols.
Advanced Topology
Verification procedures are included for fuel system components, carburetor assembly, oil injection mechanisms, and electrical circuit continuity. The document provides detailed torque specifications for the engine mounting system to ensure proper mating surface contact. Exploded diagrams accompany each major assembly with step-by-step removal and installation procedures, supported by service point annotations for wear limits and replacement thresholds.
Modular Architecture
Repair information is provided for the control system, including steering cable, throttle cable, and choke cable inspection routines with adjustment parameters. Maintenance intervals are documented for periodic service at 10-hour (break-in), 50-hour (3-month), 100-hour (6-month), and 200-hour (annual) intervals. Special tools are catalogued with part numbers and manufacturer references, along with measuring instruments for precise diagnostics.
Operational Benchmarks
The document includes coverage of ignition spark gap testing, spark plug inspection procedures, and compression measurement protocols. Battery fluid level assessment, specific gravity evaluation at 20°C, and charging current specifications are documented. Wiring diagrams delineate the ignition system, starting system, charging system, and indication system with terminal identification and connector types.
Structured Architecture
Brake system specifications are included for control lever free play (throttle: 7-10 mm, choke: 1-6 mm) with lock nut torque values. Hull repair guidance encompasses light scratching restoration with progressive grit sanding, deep scratching remediation using gel-coat application, and punctured hull repair employing fiberglass lamination techniques. Exhaust system, deck components, gunwale assembly, and mat installation procedures are systematically organized with photographic exploded diagrams.
Integrated Benchmarks
Safety procedures are documented for gasoline handling, ventilation during engine testing, personal protection equipment requirements, and electrical system hazard warnings. The manual designates symbol conventions for lubrication points (water-resistant grease, molybdenum disulfide grease, outboard motor oil), sealing compounds (Gasket Maker, Yamahabond #4, LOCTITE variants), and special fastener applications. Oil injection system air bleeding procedures, cooling water passage flushing, and bearing greasing capacity specifications (ranging from 2.0 to 35.0 cm³) are documented with measurement references.
The document contains torque specifications for fasteners across engine, jet unit, and structural assemblies to ensure proper connection integrity. Specifications for electrical resistance measurements, voltage regulation ranges (14.3-15.3 V), and thermo sensor temperature thresholds (ON: 90-96°C, OFF: 76-90°C) are provided as reference data. Carburetor jet sizing (main jet: 135-137.5, pilot jet: 115), reed valve parameters (thickness: 0.4 mm, valve lift: 9.0±0.2 mm), and impeller clearance limits (service limit: 0.6 mm) are systematically tabulated.
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