Are you facing trouble with the wiring system of your 1987 Yamaha Warrior? Do you want to fix it but don’t know where to start? Look no further as we have all the information you need to ensure your wiring system works perfectly.
The Basics of Yamaha Warrior Wiring System
The Yamaha Warrior is a powerful ATV, and its wiring system is complex. Without proper knowledge of its wiring system, it is hard to troubleshoot any issue that may arise. Thus, understanding the basics of the wiring system is essential to maintain the ATV’s optimum performance.
The wiring system of Yamaha Warrior comprises of different components such as the battery, starter, solenoid, ignition switch, CDI, coil, regulator/rectifier, and the engine stop switch. These components work together to power the ATV and control its various functions such as starting, stopping, and providing electrical power to the lights and other accessories.
Each component of the wiring system is connected through wires and cables, and understanding their connections is crucial to ensure the system works efficiently. The following sections provide detailed information about each component and its connections.
Yamaha Warrior Wiring Diagram
Before proceeding with any troubleshooting or fixing, a wiring diagram is crucial to understand how the components are connected to each other. The wiring diagram provides a visual representation of the electrical system, and it is essential to refer to it before working on the wiring system.
The following wiring diagram shows the complete wiring system of the 1987 Yamaha Warrior:
| Color | Component | Wire Gauge | Function |
|---|---|---|---|
| Black | Ground | 14 | Ground connection for all components |
| Yellow | AC output | 16 | Provides AC power to the regulator/rectifier |
| Green | Engine stop switch | 18 | Connects the engine stop switch to the CDI unit |
| Blue/white | CDI unit | 20 | Connects the CDI unit to the ignition coil |
| Red/white | CDI unit | 20 | Connects the CDI unit to the regulator/rectifier |
| Orange | Regulator/rectifier | 14 | Connects the regulator/rectifier to the battery |
| Brown | Starter relay | 14 | Connects the starter relay to the starter motor |
| Black/white | Ignition switch | 18 | Connects the ignition switch to the CDI unit |
| Red | Main fuse | 14 | Connects the battery to the starter relay |
| Brown/white | Neutral switch | 18 | Connects the neutral switch to the CDI unit |
Battery
The battery is the primary source of electrical power for the ATV. It provides power to the starter motor, ignition system, lights, and other accessories. The 1987 Yamaha Warrior uses a 12-volt, maintenance-free battery, and it is located under the seat.
Ensure the battery is fully charged, and its terminals are clean and tight. A weak battery can cause a variety of issues with the wiring system and affect the ATV’s overall performance. If the battery is weak, it may need to be replaced.
Starter System
The starter system is responsible for starting the engine. The 1987 Yamaha Warrior uses an electric starter, and it is activated by the starter relay. When the starter button is pressed, it sends a signal to the starter relay, which then closes the circuit and provides power to the starter motor.
If the starter system is not functioning correctly, it may be due to a faulty starter relay, starter motor, or wiring. Check the wiring connections and ensure they are clean and tight. If the wiring is fine, test the starter relay and starter motor to see if they are functioning correctly.
Ignition System
The ignition system is responsible for providing the spark to ignite the fuel in the engine. The 1987 Yamaha Warrior uses a CDI (capacitor discharge ignition) system, and it is activated by the ignition switch.
If the ignition system is not functioning correctly, it may be due to a faulty CDI unit, ignition coil, or wiring. Check the wiring connections and ensure they are clean and tight. If the wiring is fine, test the CDI unit and ignition coil to see if they are functioning correctly.
Regulator/Rectifier
The regulator/rectifier is responsible for regulating the electrical power from the alternator and rectifying the AC power to DC power to charge the battery. The 1987 Yamaha Warrior uses a combined regulator/rectifier, and it is located under the seat.
If the regulator/rectifier is not functioning correctly, it may cause a variety of issues with the wiring system, including poor charging, dim lights, or battery drain. Check the wiring connections and ensure they are clean and tight. If the wiring is fine, test the regulator/rectifier to see if it is functioning correctly.
Engine Stop Switch
The engine stop switch is responsible for stopping the engine. It is located on the handlebar and is connected to the CDI unit through a green wire. When the switch is pressed, it cuts off the signal to the CDI unit and stops the engine.
If the engine stop switch is not functioning correctly, it may not stop the engine, or it may cause a variety of issues with the wiring system. Check the wiring connections and ensure they are clean and tight. If the wiring is fine, test the engine stop switch to see if it is functioning correctly.
FAQs
Q: Why is my Yamaha Warrior not starting?
A: There may be various reasons why your Yamaha Warrior is not starting, including a weak battery, faulty starter relay, starter motor, or wiring. Check the battery’s charge, ensure the wiring connections are clean and tight, and test the starter relay and starter motor to see if they are functioning correctly.
Q: Why is my Yamaha Warrior not charging?
A: A faulty regulator/rectifier may cause poor charging, dim lights, or battery drain. Check the wiring connections and ensure they are clean and tight. If the wiring is fine, test the regulator/rectifier to see if it is functioning correctly.
Q: Why is my Yamaha Warrior’s lights dim?
A: A faulty regulator/rectifier may cause dim lights. Check the wiring connections and ensure they are clean and tight. If the wiring is fine, test the regulator/rectifier to see if it is functioning correctly.
Q: What is a CDI unit?
A: A CDI unit is an electronic device that stores energy and releases it to the ignition coil to generate a spark to ignite the fuel in the engine. It is an essential part of the ignition system.
With this comprehensive guide, you can now fix any issue with your 1987 Yamaha Warrior’s wiring system and ensure it works efficiently. By following the wiring diagram and understanding each component’s function, you can easily troubleshoot any issue and maintain your ATV’s optimum performance.
