2002 Yamaha FX140 WaveRunner Service Manual (883 Pages)
Comprehensive service procedures for 4-stroke jet pump watercraft including engine, fuel, electrical systems, and jet pump maintenance with step-by-step repair instructions.
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Models Covered & Key Technical Specifications
Yamaha FX140 — 2002 Systematic Technical Registry | FX140 Series Archive.
- Calibrated Engine Displacement: 998 cm³ (60.9 cu. in) is specified as the four-stroke cylinder volume Topology.
- Measured Maximum Output: 103 kW (140 PS) at 10,000 rpm represents the rated horsepower Framework.
- Engineered Fuel Tank Capacity: The fuel system requires 70 L (18.5 US gal) for extended cruising range Standards.
- Verified Compression Pressure: Maximum cylinder pressure is set to 1,350 kPa (13.5 kgf/cm², 192 psi) Margin.
- Factory Dry Weight Configuration: 362 kg (798 lb) produces the complete watercraft mass Protocol.
- Design Oil Capacity Specification: Engine lubrication system requires 4.3 L (4.5 US qt, 3.8 Imp qt) total volume Bounds.
Professional Workshop Service Manual & Technical Specifications
Professional Specification Overhaul Manual: 2002 Yamaha FX140 Service Manual Field-Reference
Model-Designation: Yamaha FX140 (2002), WaveRunner Personal Watercraft // Engineering-Metrics: Multi-Language Technical Coverage / Jet Pump Systems & Fuel Injection Diagnostics // Model-Designation: 883 Total Pages, Complete Factory Service Documentation.
| Assessment-Element | Technical-Path | Calibration-Data |
|---|---|---|
| Engine Systems Documentation | Valve clearance procedures and timing specifications | Complete torque tables; compression data documented |
| Jet Pump Configuration | Impeller inspection and housing clearance reference | Specifications included; See Chapter 6 |
| Fuel System Coverage | Injection system and tank module procedures | Pressure measurement data provided |
The documentation is partitioned into nine major chapters methodically requiring specialized mechanical expertise. Periodic Inspection and Adjustment addresses steering systems and control cables, while Fuel System sections encompass tank and pump module configurations. Power Unit procedures detail valve clearance adjustment with measurement sequences and valve pad thickness selection tables, accompanied by Engine oil level protocols and Air filter maintenance guidance. Jet Pump Unit inspections document impeller tolerance standards and water inlet strainer assessment, specifications encompass general mechanical data and maintenance interval requirements, and Electrical systems present battery inspection with charging current parameters alongside starter motor performance metrics.
The manual presents information on 4-stroke L4 DOHC engine architecture with 998 cubic centimeter displacement, 103 kilowatt maximum output, and 11.4:1 compression ratio. Transmission specifications include direct-drive jet pump configuration with 19/28 gear ratio and manual 5-position trim system. The rigorous documentation structure includes exploded diagrams, removal and installation charts, and sequential service procedures for all major subsystems. Electrical specifications provide battery capacity (12/19V), starter motor output (0.8 kW), and rectifier/regulator parameters with peak voltage ratings at multiple RPM levels.
The document covers systemwide procedures for control system cable adjustment, fuel injection body synchronization protocols, and ignition timing calibration reference values at BTDC 35–ATDC 5 positions. Specifications data includes valve clearance ranges (0.11–0.20 mm intake, 0.25–0.34 mm exhaust cold), spark plug gap (0.7–0.8 mm), and battery specific gravity at 20 °C (1.28). The manual documents torque specifications for the jet pump assembly to ensure proper component integration, referenced throughout the fastener tables for critical mechanical connections requiring precision assembly technique.
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