2004-2005 Yamaha Grizzly 660 YFM660FS Supplementary Service Manual (P/N LIT-11616-17-14)

• Covers 2004–2005 Yamaha Grizzly 660 (YFM660FS) models featuring 4WD, 2WD, and differential-lock setups
• Official Yamaha publication P/N LIT-11616-17-14, first edition April 2003
• Delivers 478 pages of technical specifications, cable routing diagrams, and complete electrical system schematics
• Serves as the essential technical supplement to the earlier YFM660FP and YFM660FR base service manuals

Technical Documentation Overview

Inside the 2004–2005 Yamaha Grizzly 660 manual, you will find factory-specified maintenance routines and exact component specifications. The document dives deep into the drive train system, clearly outlining the differential gear and front constant velocity joints. For the engine, the manual provides critical data like idle speed, intake vacuum, and fuel level settings. Tracking down an electrical gremlin? The wiring diagrams and component checks assist in troubleshooting the ignition, charging, and signal systems to ensure accurate component identification on the bench. Because this data directly impacts machine operation, these technical parameters are provided for reference; always rely on certified safety practices and professional shop judgment when performing service work to prevent personal injury or equipment damage.

Specification and Data Preview

The technical sections provide comprehensive reference values straight from the manufacturer. You get precise numbers for carburetor jet sizes, suspension spring rates, and charging system output metrics. For instance, charging coil resistance is documented at 0.32–0.43 ohms at 20 °C (68 °F). The pickup coil resistance specifies 459–561 ohms at the exact same temperature. Furthermore, the publication includes detailed torque settings for chassis and engine fasteners. A critical example: primary wheel hub nuts require a strict 260 Nm (190 ft-lb) for proper assembly.