Description

Yamaha SJ700AU WaveRunner Service Manual

This comprehensive service manual provides complete maintenance, diagnostic, and repair procedures for Yamaha SJ700AU WaveRunner personal watercraft, equipped with the Yamaha Marine TR-1 HO 1049cc three-cylinder four-stroke engine. Written by factory-trained technicians, this detailed guide contains the essential information needed to properly service and maintain your Yamaha watercraft to factory specifications.

Technical Coverage Includes:

• Complete TR-1 HO engine servicing procedures including 0.15-0.22mm valve clearance adjustment, 5000 RPM idle setting, and 155mm cylinder bore specifications
• Detailed fuel system maintenance including 42mm electronic fuel injection system, 60 PSI fuel pressure testing, and 3.2-gallon fuel tank service procedures
• SMC composite hull and deck repair procedures with 2.5mm minimum thickness inspection guidelines and gel coat repair specifications
• 12V DC electrical system diagnostics with YAMAHA Engine Management System (Y-EMS) troubleshooting and 30-amp charging system testing
• 155mm axial-flow jet pump service including 3-blade stainless steel impeller inspection, 0.5mm wear ring clearance, and drive shaft alignment at 1.0° maximum
• Quick-shift trim system (QSTS) maintenance with 24° trim angle adjustment and cable tension specifications
• Dual cooling system service including thermostat testing (139°F opening), intercooler maintenance, and anti-corrosion zinc anode replacement
• Yamaha Security System (Y.E.S.S.) programming and diagnostic procedures

Professional Features:

• Factory torque specifications (cylinder head: 43 Nm, jet pump housing: 33 Nm)
• Multi-function digital instrumentation calibration including speed sensor programming
• Step-by-step repair procedures with high-resolution diagnostic photographs
• Advanced troubleshooting for Yamaha Multi-Function Display (MFD) system
• Complete BOM (Bill of Materials) with Yamaha genuine parts cross-reference
• Navigation light system maintenance (bow: 225°, stern: 135° visibility arc)

This manual is an essential resource for professional marine technicians, experienced watercraft owners, and service facilities. The detailed procedures ensure repairs are performed correctly the first time, maintaining both safety and performance. All specifications and procedures meet USCG, ABYC, and factory guidelines, ensuring professional-quality results.

Written in clear technical language with precise measurements and specifications, this manual provides the detailed information needed for both routine maintenance and complex repairs. Proper use of this manual helps extend equipment life and maintain optimal performance of your Yamaha WaveRunner SJ700AU, rated for 3 passengers with a maximum capacity of 240kg (529 lbs).