Yamaha XT660R(S), XT660X(S) 2004 OEM Service Manual

• Official 462-page OEM publication (MBK Industrie First Edition, December 2003) for the 5VK/1D-series build.
• Covers 2004 Yamaha XT660R(S) and XT660X(S) models with 660cc single-cylinder liquid-cooled engines (Europe, Australia, and Great Britain variants).

Content Preview

This factory documentation provides a comprehensive breakdown of the 2004 Yamaha XT660R and XT660X. It serves as the original technical build specification, detailing everything from the engine assembly to the chassis and electrical framework. Whether you are mapping out sensor locations or identifying the special tools required for a professional-grade overhaul, this manual delivers exact factory standards.

Service data is logically structured across nine core chapters. You get direct access to specifications, periodic checks, chassis data, and complete cooling loop and fuel injection (FI) system charts. Extensive exploded-view diagrams map out every bolt, nut, and sub-assembly. This saves significant time in the workshop by showing exactly how components fit together before you even touch a wrench.

Technical Data Preview

The manual goes deep into the mechanical specifications for the 660cc engine build. For example, standard compression pressure is listed at 650 kPa (92.4 psi), and the cooling system capacity sits at exactly 1.00 liters. Intake valve clearance is specified at 0.09–0.13 mm. You will also find precise tightening torque values for every critical fastener. The cylinder head bolts and the clutch boss nut, for instance, require 90 Nm. Electrical values are rigorously indexed, highlighting a battery capacity of 12 V/8.0 AH and a charging system output of 14.0 V/20.8 A at 5,000 r/min.

Always prioritize workshop safety. Motor vehicle maintenance involves high-pressure fluids and electrical currents. It is highly recommended to consult a certified technician before performing service on this equipment. This guide provides the necessary reference data to understand the internal systems, troubleshoot FI performance symptoms, and verify wear limits for bearings and oil seals safely.