Yamaha Big Bear 350 4WD, YFM350FWT, YFM350FWW, YFM350FWA, YFM350FWB, YFM350FWF, YFM350FWH, YFM350FWJ ATV Service and Owner's Manual, PDF 1987-1997
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Sample pages from the Yamaha Big Bear 350 4WD, YFM350FWT, YFM350FWW, YFM350FWA, YFM350FWB, YFM350FWF, YFM350FWH, YFM350FWJ ATV Service and Owner's Manual, PDF 1987-1997 manual
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Models Covered & Key Technical Specifications
- Big Bear YFM350FWT (1987)
- Big Bear YFM350FWW (1989)
- Big Bear YFM350FWA (1990)
- Big Bear YFM350FWB (1991)
- Big Bear YFM350FWF (1994)
- Big Bear YFM350FWH (1996)
- Big Bear YFM350FWJ (1997)
Professional Workshop Service Manual & Technical Specifications
1987-1997 Yamaha Big Bear 350 4WD Service & Owner's Manual Collection
Keep your vintage Yamaha Big Bear 350 4WD in peak condition with this comprehensive technical resource. This collection combines the factory Service Manual, all necessary Supplemental Manuals, and the official Owner’s Manual into one essential digital package. Whether you are performing a routine oil change or a complete engine overhaul, this documentation provides the exact specifications and procedures used by Yamaha technicians.
The Yamaha Big Bear 350 4WD (YFM350FW) is a legendary workhorse known for its robust 348cc air-cooled 4-stroke engine and its full-time four-wheel-drive system. Spanning over a decade of production, this manual covers the evolution of the series, ensuring you have the correct data for every year from the original 1987 release to the final 1997 models.
Comprehensive Model Coverage:
This manual is specifically tailored for the following model years and designations found in the documentation:
- Big Bear YFM350FWT (1987)
- Big Bear YFM350FWW (1989)
- Big Bear YFM350FWA (1990)
- Big Bear YFM350FWB (1991)
- Big Bear YFM350FWF (1994)
- Big Bear YFM350FWH (1996)
- Big Bear YFM350FWJ (1997)
Technical Serial Number Identification:
To ensure you are using the correct technical data, verify your vehicle's identification numbers. The manuals include specific tracking for:
- Frame Serial Number: Located on the front left side of the frame pipe.
- Engine Serial Number: Located on the lower right side of the crankcase (starting prefixes often include 1UY, 2HT, 3HN, or 4UM depending on the year).
What is included in this Manual:
- General Information: Tool identification, cleaning, and storage tips for your ATV.
- Specifications: Detailed torque settings, fluid capacities, and engine tolerances.
- Periodic Inspections & Adjustments: Step-by-step guides for valve clearance, spark plug maintenance, and brake adjustments.
- Engine Overhaul: Complete teardown and assembly of the 348cc powerplant, including cylinder head, piston, and clutch service.
- Fuel System: Mikuni carburetor cleaning, tuning, and jetting specifications.
- Drive Train: Detailed service for the constant-mesh 5-speed transmission, reverse gear, and the front/rear differential units.
- Chassis: Front suspension (double wishbone) and rear monocross suspension service, including wheel bearing replacement.
- Electrical System: Troubleshooting for the CDI ignition, starter motor, and charging system.
- Wiring Diagrams: Full-color high-resolution diagrams for each model year to trace electrical faults quickly.
Why This Manual is Essential:
Unlike generic aftermarket guides, this collection includes the Supplemental Service Manuals. Yamaha released these supplements to cover technical updates and changes made in specific years (like the 1997 YFM350FWJ). Having the complete set ensures you aren't working with outdated torque specs or incorrect wiring schematics. This is the ultimate authority for maintaining the reliability and resale value of your Yamaha Big Bear.
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