2004-2006 Yamaha YFM350FAS Big Bear 350 4x4 Service & Repair Manual

Yamaha YFM350FAS Big Bear 350 4x4 Technical Data & Service Manual PDF

• Covers 2004–2006 Yamaha YFM350FAS Big Bear 350 4x4 ATVs equipped with the 348 cm³ air-cooled SOHC engine
• Original OEM publication (first edition) providing factory specifications and assembly data for the 5UH1 model code
• Contains 588 pages of indexed technical content, including specialized torque sequences, lubrication charts, and clear wiring diagrams for any repair job
• Instant download right after checkout provides immediate access for your current maintenance tasks
• Permanent availability in your purchase account—no re-buy required
• Print individual sections straight to your shop floor to keep your digital file clean
• Full-text search lets you find specific part numbers or specs in seconds

Factory Service Content & Specs

This factory service document serves as the master reference for the 5UH1 build variant. It provides the essential service data required to maintain the transmission, drivetrain, and electrical systems. You get detailed general specifications and maintenance intervals straight from the manufacturer, eliminating the guesswork in your shop routine.

Dedicated chapters break down engine top-end service. You will find structured outlines for cylinder head assembly and camshaft valve clearances. Subsequent sections map out the V-belt transmission, middle gear shimming, and front constant velocity joint maintenance. It also thoroughly covers chassis geometry, brake system service, and steering components. Working on these machines requires following established safety protocols and using properly rated tools to prevent injury or equipment damage. Every mechanical system is documented with precise standard and limit values for critical wear parts to ensure safe operation.

Engine components are supported by rigorous torque tables and exploded diagrams showing exact component orientation. For accurate tuning, the engine idle speed is 1,450–1,550 r/min. You can verify internal wear using the factory threshold for top piston ring side clearance (0.03–0.08 mm). Electrical system health is easily diagnosed with precise testing metrics, such as a C.D.I. pickup coil resistance of 459–561 ohms at 20°C. From fluid capacities to long-term reliability specs, this 2004–2006 manual covers the exact technical requirements needed for your next Big Bear 350 4x4 repair project.