2004–2006 Yamaha YFM350FAS Big Bear 350 4x4 Service & Repair Manual (P/N 5TE-F8197-10)

• Covers 2004–2006 Yamaha YFM350FAS Big Bear 350 4x4 ATVs equipped with the 348 cm³ air-cooled SOHC engine, as well as YFM400FAR variants featuring the 401 cm³ liquid-cooled engine
• Original OEM publication (first edition, P/N 5TE-F8197-10) providing factory specifications and assembly data for the 5UH1, 5TE1, and 5TE5 model codes
• Contains 588 pages of indexed technical content, including specialized torque sequences, lubrication charts, and clear wiring diagrams for any repair job
• Detailed teardowns for the Mikuni BSR33 carburetor, recoil starter, A.C. magneto, water pump, oil pump, differential gear, steering knuckles, and swingarm
• Step-by-step procedures for valve clearance adjustment, hydraulic brake bleeding, toe-in alignment, differential gear lash measurement, coolant replacement, middle gear shimming, carburetor tuning, and ignition timing verification

Factory Service Content & Specs

This factory service PDF serves as the master reference for the 5UH1, 5TE1, and 5TE5 build variants. 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. By utilizing the exact factory shim selection formulas and gear lash tolerances, you can prevent premature component wear and significantly reduce diagnostic time during complex bottom-end overhauls.

Dedicated chapters break down engine top-end service, allowing technicians to handle expensive dealership procedures in-house, such as hydraulic brake bleeding or differential tuning. You will find structured outlines for cylinder head assembly and camshaft valve clearances. Subsequent sections map out the V-belt transmission, middle gear shimming, the cooling system, 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. To further streamline complex tasks, the content includes detailed oil flow diagrams, coolant flow diagrams, cable routing diagrams, circuit diagrams, and step-by-step job instruction charts. 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 or 400 4x4 repair project.