If you’re looking for a wiring diagram for your 1981 Suzuki GS 650, you’ve come to the right place. In this article, we’ll provide you with all the information you need to wire your Suzuki GS 650 properly. With this information, you’ll be able to troubleshoot any electrical issues you might encounter and make any necessary repairs.
The Basic Wiring Diagram
The wiring diagram for your 1981 Suzuki GS 650 is relatively simple. It consists of a few basic components, including the battery, starter solenoid, ignition switch, alternator, regulator/rectifier, and various fuses and relays. To help you visualize the wiring diagram, we’ve included a table below that shows the wiring connections for each component.
| Component | Wiring Connection |
|---|---|
| Battery | Positive terminal to main fuse, negative terminal to ground |
| Starter Solenoid | Positive terminal to main fuse, negative terminal to starter motor |
| Ignition Switch | Switched positive to main fuse, output to various circuits |
| Alternator | Three-phase output to regulator/rectifier |
| Regulator/Rectifier | Input from alternator, output to battery and various circuits |
| Fuses and Relays | Various connections to circuits and ground |
With these basic components and connections in mind, let’s take a closer look at each one.
The Battery
The battery is the heart of your electrical system. It stores energy that can be used to start your engine and power your lights and accessories. The positive terminal of the battery should be connected to the main fuse, which protects your electrical system from damage due to overloading or short circuits. The negative terminal of the battery should be connected to a solid ground, such as the frame of your motorcycle.
The Starter Solenoid
The starter solenoid is a switch that connects the battery to the starter motor. When you turn the key, the solenoid sends power to the starter motor, which cranks the engine. The positive terminal of the solenoid should be connected to the main fuse, just like the battery. The negative terminal of the solenoid should be connected to the starter motor.
The Ignition Switch
The ignition switch is the key to your motorcycle. It connects the battery to various circuits, such as the lights and ignition system. When you turn the key, the switch sends power to these circuits, allowing your motorcycle to run. The switched positive terminal of the ignition switch should be connected to the main fuse. The output of the ignition switch should be connected to the various circuits that require power, such as the ignition coils, lights, and horn.
The Alternator
The alternator is the component that generates electricity while your engine is running. It has three-phase output that is sent to the regulator/rectifier. The alternator should be grounded to the frame of the motorcycle, and its output should be connected to the regulator/rectifier.
The Regulator/Rectifier
The regulator/rectifier is responsible for regulating the voltage produced by the alternator and rectifying the AC voltage to DC voltage. It also sends this voltage to the battery and various circuits that require power. The regulator/rectifier should be grounded to the frame of the motorcycle, and its input should be connected to the output of the alternator. Its output should be connected to the battery and various circuits.
Fuses and Relays
Fuses and relays are used to protect your electrical system from damage due to overloading or short circuits. Fuses are designed to burn out when the current flowing through them exceeds a certain level, while relays are switches that are activated when a low-current signal is applied to them. Fuses and relays should be connected to the circuits they are designed to protect, and they should be grounded to the frame of the motorcycle.
FAQ
What should I do if my motorcycle won’t start?
If your motorcycle won’t start, the first thing you should check is the battery. Make sure it is fully charged and the connections are clean and tight. You should also check the starter solenoid and starter motor to make sure they are functioning properly. If these components are working, you should check the ignition system and fuel system for any problems.
Why do my lights flicker when I rev the engine?
If your lights flicker when you rev the engine, it could be a sign of a problem with the alternator or regulator/rectifier. These components are responsible for regulating the voltage produced by the alternator and ensuring that it is stable. If they are failing, you may notice fluctuations in voltage, which can cause your lights to flicker.
What should I do if a fuse blows?
If a fuse blows, it is usually a sign that there is a problem with the circuit it is protecting. You should check the wiring and connections for any signs of damage or loose connections. You should also check the components connected to the circuit to make sure they are functioning properly. Once you have identified the problem, you can replace the fuse and test the circuit.
Why is my battery not charging?
If your battery is not charging, it could be a sign of a problem with the alternator or regulator/rectifier. You should check the wiring and connections between these components to make sure they are clean and tight. You should also test the output of the alternator and regulator/rectifier to ensure that they are functioning properly. If these components are working, you may have a problem with the battery itself.
What should I do if I smell burning electrical components?
If you smell burning electrical components, you should immediately stop your motorcycle and investigate the problem. Burning electrical components can be a sign of a serious problem, such as a short circuit or overloaded circuit. You should check the wiring and connections for any signs of damage or heat damage. If you cannot identify the problem, you should seek professional help immediately.
Can I use a wiring diagram for a different year model?
No, you should always use a wiring diagram that is specific to your year and model of motorcycle. Different models and years may have different wiring connections and components, which could lead to serious problems if you use the wrong diagram.
