Yamaha 650/700 Waverunner III 1990-1997 Service Manual (P/N E20701-0)
804 Pages • 71.85 MB • Instant, Printable PDF
Yamaha Models Covered & Key Technical Specifications
Models: Yamaha Waverunner III 650, Yamaha Waverunner III 700
Sub-models / Variants: 650, 700
Trade Names: Waverunner III
Model Years: 1990–1997
Serial Numbers: FJO: 100101–, 6R8: 000101–
Technical Data:
- Engine displacement: 633 cc
- Engine configuration: 2-stroke, 2-cylinder
- Max power output: 36.8 kW (50 ps) at 6,000 rpm
- Cooling system: Water-cooled
- Fuel tank capacity: 40 L (10.6 US gal) including 7 L (1.86 US gal) reserve
- Oil tank capacity: 4 L (1.06 US gal)
- Ignition system: C.D.I.
- Propulsion system: Axial flow jet pump, single stage with reverse thrust
- Steering nozzle angle: 23° ±1°
- Compression pressure: 981 kPa (142.2 psi)
- Spark plug type: NGK BR8HS
Yamaha Manual Features & Content Preview
- Covers 1990–1997 Yamaha Waverunner III personal watercraft, including both 650 and 700 cc variants, featuring full factory maintenance and repair data
- Official Yamaha documentation P/N E20701-0 detailing engine, chassis, and jet drive assembly procedures across exactly 804 pages
- Contains 12 detailed exploded-view diagrams for the fuel and oil injection systems and 7 technical specifications tables including specific torque settings
- Serves as the factory-authorized reference for the FJO-series hull and 6R8-engine assembly, maintaining original component tolerances and fluid capacities
Component and Systems Documentation
The 1990–1997 Yamaha Waverunner III manual provides deep insights into major mechanical systems. It serves as an essential reference for daily workshop routines. Coverage includes the complete power unit overhaul. You get exact data ranging from piston-to-cylinder clearance measurements to crankshaft deflection analysis. The fuel and oil injection chapters detail assembly, inspection, and pressure hose routing. They provide clear diagrams for the fuel pump, diaphragm, and carburetor setup. Hull maintenance is also thoroughly documented. This includes bilge system components, steering cable adjustments, and exhaust system sealing with precise component-level details. Please note that marine watercraft maintenance involves inherent risks. Technicians must verify workspace ventilation and follow standard shop safety protocols prior to any fuel or electrical system inspections.
Technical Specifications Preview
This reference delivers comprehensive data for both the 650 and 700 cc power units. Piston-to-cylinder clearance is documented at 0.080–0.085 mm with a strict wear limit of 0.1 mm. The fuel system relies on a 40-liter tank. The oil injection system requires Yamalube 2-stroke outboard lubricant. Cylinder head bolt torque values are specified in a two-stage sequence. You start at 15 Nm and finish at 30 Nm. Battery specific gravity is listed at 1.28 at 20°C (68°F). The publication provides all necessary details to accurately interpret the included wiring schematics and electrical troubleshooting sections.
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