1990-1995 Yamaha Moto 4 350 / YFM350ER (A-G) Service Manual

Yamaha Moto 4 350 YFM350ER 1990–1995 Technical Reference

• Covers 1990–1995 Yamaha Moto 4 350 and YFM350ER models, documenting maintenance, engine overhaul, and chassis service for the A-G variant sequence
• Official Yamaha publication P/N T-11616-07-51, providing factory-authorized technical data for the YFM350ER line
• Contains 331 pages of technical information including engine exploded views, wiring diagrams, torque specification tables, and lubrication schedules
• Accessible from your device as soon as the order is placed
• Suitable for printing individual sections for shop-floor use
• Full-text search finds any part number in seconds
• This specific edition captures the complete technical specifications and assembly procedures required for the 3HP-series engine production build and chassis maintenance

Manual Content and Chapter Scope

The 1990–1995 Yamaha Moto 4 350 service manual covers every mechanical aspect of the YFM350ER ATV, providing detailed data for engine, chassis, and electrical system service. Opening sections outline identification procedures, special tool requirements, and general shop practices for safe, professional maintenance work.

Subsequent chapters describe engine overhaul procedures, carburetion setup, and drive train adjustments. Detailed wiring diagrams and electrical component testing data support diagnostic tasks, while chassis sections detail brake service, steering alignment, and shock absorber settings for the Moto 4 350 platform.

Specification Highlights

Engine technical data includes tolerances for cylinder head warpage, piston-to-cylinder clearance, and camshaft dimensions. Valve clearance is documented at 0.06–0.10 mm for intake and 0.16–0.20 mm for exhaust valves. Torque values for critical fasteners, including the cylinder head bolts at 40 Nm (29 ft-lb), are clearly listed in the specification tables for reliable assembly.

Fluid capacities for the 1990–1995 Yamaha Moto 4 350 are documented at 2.5 liters for engine oil changes and 0.25 liters for final gear oil. Intake valve clearance for the YFM350ER is specified at 0.06–0.10 mm in the engine assembly table. The compression pressure range for this engine is defined at 750–1000 kPa. You can learn more about how factory workshop documentation is structured by reviewing what an OEM service publication covers.

Reference only — always consult a certified technician before performing service on this equipment. An official 331-page Yamaha OEM workshop manual covering the 1990–1995 YFM350ER, documenting engine, chassis, electrical, and powertrain specifications for the A-G production series.