Introduction
This Clymer repair manual provides detailed instructions for the maintenance, service, and repair of various Yamaha BIG BEAR and YFM 350ER Moto-4 models. It is designed for both the do-it-yourselfer and experienced mechanics, offering step-by-step procedures, illustrations, and photographs to guide users through each task.
The manual covers a range of models and years, ensuring comprehensive support for your vehicle. Refer to the compatibility section to confirm your specific model is covered.
Vehicle Compatibility
This repair manual is compatible with the following Yamaha models:
Image Description: A list of Yamaha ATV models and their production years for which this manual provides repair instructions. The list includes: Yamaha BIG BEAR 2x4 350 (1996-1999), Yamaha BIG BEAR 4X4 400 (2000-2004), Yamaha BIG BEAR 2x4 400 (2000-2004), Yamaha YFM 350ER Moto-4 (1987-1995), and Yamaha BIG BEAR 4x4 350 (1987-1999).
- Yamaha BIG BEAR 2x4 350 (1996-1999)
- Yamaha BIG BEAR 4X4 400 (2000-2004)
- Yamaha BIG BEAR 2x4 400 (2000-2004)
- Yamaha YFM 350ER Moto-4 (1987-1995)
- Yamaha BIG BEAR 4x4 350 (1987-1999)
Getting Started with Your Manual
This Clymer repair manual is organized to facilitate easy navigation and understanding. To effectively use this resource, familiarize yourself with its structure and content before beginning any repair or maintenance task.
Manual Layout
The manual is divided into chapters, each focusing on a specific system or component of your Yamaha vehicle. These chapters are arranged logically, typically starting with general information and progressing to detailed repair procedures. Each chapter begins with an overview of the system it covers.
Interpreting Instructions
Procedures are presented in clear, numbered steps. It is crucial to follow these steps sequentially. Accompanying illustrations and photographs are provided to offer visual guidance, helping to clarify complex steps and component identification. Always refer to these visuals in conjunction with the text.
Safety Precautions
Before undertaking any work, review the safety information provided at the beginning of the manual. Always wear appropriate personal protective equipment and ensure your work area is safe and well-lit. Disconnect the battery before working on electrical components to prevent accidental activation or electrical shock.
Required Tools and Supplies
A list of necessary tools and supplies is often provided at the beginning of each major procedure. Ensure you have all required items, including any specialized tools, before starting. Using incorrect tools can lead to damage to components or personal injury.
Maintenance
Regular maintenance is crucial for the longevity and performance of your Yamaha vehicle. This manual includes comprehensive maintenance schedules and procedures for various components.
Routine Checks
- Fluid Levels: Check engine oil, coolant, brake fluid, and differential fluid levels regularly.
- Tire Pressure: Maintain correct tire pressure as specified by the manufacturer.
- Brake System: Inspect brake pads, discs, and fluid lines for wear or damage.
- Lighting: Verify all lights (headlights, taillights, brake lights) are functional.
Scheduled Service
Refer to the specific maintenance schedule within the manual for recommended service intervals, which typically include:
- Oil and filter changes
- Air filter inspection and replacement
- Spark plug inspection and replacement
- Valve clearance adjustment
- Drive system inspection (chains, belts, shafts)
Troubleshooting
This section assists in diagnosing common problems that may arise with your Yamaha vehicle. It provides systematic approaches to identify the root cause of issues.
Engine Problems
- Engine will not start: Check battery, starter, fuel supply, ignition system.
- Poor engine performance: Inspect fuel system, air filter, spark plugs, compression.
- Overheating: Verify coolant level, radiator condition, thermostat operation.
Electrical Issues
- No power: Check battery terminals, fuses, main relay.
- Lights not working: Inspect bulbs, wiring, switches, fuses.
Brake System Malfunctions
- Spongy brakes: Bleed brake system, check for leaks.
- Poor braking: Inspect brake pads, discs, calipers, master cylinder.
Specifications
This section provides technical data and specifications for the Yamaha BIG BEAR and YFM 350ER Moto-4 models covered by this manual. Always refer to the specific model year within the manual for precise values.
| Product Dimensions | 10.25 x 7 x 1.5 inches |
| Item Weight | 2.6 Pounds |
| Manufacturer | Clymer |
| ASIN | B079MKV6VR |
For detailed engine, chassis, electrical, and torque specifications, consult the relevant chapters within the manual specific to your vehicle's model and year.
Support
For additional support or inquiries regarding this Clymer repair manual, please refer to the contact information provided within the manual itself or visit the official Clymer website. This manual is a comprehensive guide designed to assist with repairs and maintenance, but professional assistance should be sought for tasks beyond your skill level or if you encounter difficulties.
