Description

Yamaha WaveRunner XL760 & XL1200 Service Manual

This comprehensive factory service manual provides detailed maintenance, repair, and technical specifications for Yamaha WaveRunner XL760 (762cc) and XL1200 (1131cc) personal watercraft. Written by Yamaha’s marine technicians, this professional-grade manual covers the twin-cylinder, two-stroke marine engines (Marine Model 62T/66V) with loop-charged combustion systems and digital CDI ignition.

Technical Coverage

• Complete engine specifications: 762cc/1131cc twin-cylinder two-stroke with 84mm/87mm bore and 68mm/80mm stroke ratios
• Mikuni SBN-44 dual carburetors with automatic choke system and fuel pump specifications
• Marine-grade electrical system (280W charging output) with digital CDI and 12V starting system
• 155mm axial flow jet pump with 3-blade stainless steel impeller (15.5° pitch)
• SMC (Sheet Molding Compound) hull construction with integrated sponsons and bow keel
• Cable-operated mechanical steering system with 23° maximum angle
• Closed-loop cooling system with thermostat-controlled water injection
• Complete powerhead disassembly sequences with cylinder boring specifications

Professional Features

• Factory torque specifications for critical fasteners (cylinder head: 25 Nm, exhaust manifold: 23 Nm)
• Advanced troubleshooting for YPVS (Yamaha Power Valve System)
• Detailed jet pump alignment procedures and wear ring clearance specs (0.2-0.5mm)
• Step-by-step rebuild procedures for pump housing and driveshaft assembly
• Marine-specific safety protocols including lanyard switch and ventilation testing

Essential Resource

This manual is an indispensable resource covering all aspects of these marine vessels, including the dual-carburetor fuel delivery system, marine-grade electrical components, and Yamaha’s high-performance jet propulsion system. The detailed procedures ensure compliance with USCG safety requirements and optimal performance of these 50-55 mph capable watercraft.

Whether servicing the variable-pitch steering nozzle, rebuilding the jet pump assembly, or performing compression testing (target: 128 psi ± 14), this manual provides factory-specified procedures and tolerances. Complete with marine-grade corrosion prevention protocols and winterization procedures, it serves as the definitive guide for maintaining these high-performance personal watercraft.