The 1999 Yamaha Big Bear 350 is a rugged and reliable all-terrain vehicle (ATV) that is perfect for off-road adventures. To keep your Big Bear running smoothly, it is important to have a good understanding of its wiring diagram. In this article, we will provide a comprehensive overview of the 1999 Yamaha Big Bear 350 wiring diagram, as well as answer some common questions about this ATV.
Overview of the Wiring Diagram
The wiring diagram for the 1999 Yamaha Big Bear 350 is a comprehensive guide that provides detailed information about the electrical system of the ATV. It includes information about the main wiring harness, key switch, ignition coil, CDI unit, lighting coil, voltage regulator, starter relay, starter motor, battery, and various other components that make up the ATV’s electrical system.
The wiring diagram is divided into several sections, each of which provides information about a specific electrical function. The sections are labeled with letters, and each wire that connects to a specific component is labeled with a number that corresponds to the letter of the section in which it is located.
The wiring diagram is an invaluable resource for anyone who needs to troubleshoot electrical problems on their 1999 Yamaha Big Bear 350. It provides a clear and concise picture of the electrical system and makes it easy to identify potential issues and their solutions.
Common Questions
What is a wiring diagram?
A wiring diagram is a detailed schematic that illustrates the connections between various electrical components in a system. It is used to help diagnose and repair electrical problems, and can also be used as a reference for wiring and component location.
Why is the wiring diagram important for the 1999 Yamaha Big Bear 350?
The wiring diagram is important for the 1999 Yamaha Big Bear 350 because it provides a complete picture of the electrical system. This makes it easy to diagnose and repair any issues that may arise, and can also be used as a reference when installing new components.
How do I use the wiring diagram?
The wiring diagram can be used to identify the various components of the electrical system, as well as the wires that connect them. It can also be used to trace wires and identify potential issues. To use the wiring diagram, locate the section that corresponds to the component or function you are interested in, and follow the wires to identify their connections.
Main Wiring Harness
The main wiring harness is the backbone of the 1999 Yamaha Big Bear 350’s electrical system. It connects all of the various components of the system together and provides power to them. The main wiring harness is made up of several smaller harnesses that are connected together, and is identified in the wiring diagram as section A.
The main wiring harness contains several important connectors, including the 6-pin key switch connector, the CDI unit connector, and the lighting coil connector. It also contains several fuses and relays that protect and control various components within the system.
To troubleshoot issues with the main wiring harness, it is important to locate the section of the wiring diagram that corresponds to the specific component or function that is not working properly, and follow the wires to identify any potential issues.
Key Switch
The key switch is an important component of the 1999 Yamaha Big Bear 350’s electrical system. It is located on the left handlebar, and is used to turn the ATV on and off. The key switch is connected to the main wiring harness through a 6-pin connector, which is identified as connector A8 in the wiring diagram.
The key switch has four positions: off, on, park, and headlight. In the off position, the ATV is completely turned off and no electrical power is being supplied to any of the components. In the on position, the ATV is ready to start and all of the components are supplied with power. In the park position, the ATV is still on but the headlights are turned off. In the headlight position, the ATV is on and the headlights are turned on as well.
To troubleshoot issues with the key switch, it is important to first check the wiring connections and fuses. If those are all in working order, the key switch may need to be replaced.
Ignition Coil
The ignition coil is an important component in the 1999 Yamaha Big Bear 350’s electrical system. It is responsible for producing the electrical spark that ignites the fuel in the engine. The ignition coil is located on the left side of the engine and is connected to the CDI unit through wires that are identified as section B in the wiring diagram.
To troubleshoot issues with the ignition coil, it is important to check the connections and wires that connect it to the CDI unit. If those are in working order, the ignition coil may need to be replaced.
Conclusion
In conclusion, the 1999 Yamaha Big Bear 350 wiring diagram is an essential resource for anyone who needs to troubleshoot electrical issues or repair their ATV’s electrical system. By understanding the wiring diagram and following the appropriate procedures, it is possible to keep your Big Bear running smoothly and reliably for years to come.
| Section | Description |
|---|---|
| A | Main Wiring Harness |
| B | Ignition System |
| C | Charging System |
| D | Starting System |
| E | Lighting System |
| F | Fuses and Relays |
