1979 suzuki gs750elec. diagram – Delving into the 1979 Suzuki GS750 electric system diagram opens a window into the intricate workings of this classic motorcycle. This diagram serves as a roadmap, guiding us through the complex network of electrical components that bring this machine to life.
From the battery, which provides the initial power, to the stator, regulator/rectifier, and ignition system, each component plays a vital role in ensuring smooth operation. Understanding the flow of electricity through these circuits is crucial for diagnosing and resolving any electrical issues that may arise.
This guide explores the fundamental components of the 1979 Suzuki GS750 electric system, analyzing the provided diagram to understand the relationships between them. We will delve into common electrical problems, providing troubleshooting tips and techniques to help you diagnose and repair any faults.
Additionally, we will discuss the importance of safety when working on the electrical system and offer valuable resources for further exploration.
1979 Suzuki GS750 Electric System Overview
The 1979 Suzuki GS750 electric system, like most motorcycles of that era, is a relatively simple system that relies on a combination of mechanical and electrical components to power the motorcycle’s lights, ignition, and other electrical accessories. Understanding the function of each component and how they work together is essential for troubleshooting electrical issues and ensuring the motorcycle operates correctly.
Components of the 1979 Suzuki GS750 Electric System
The 1979 Suzuki GS750 electric system consists of several key components:
- Battery:The battery is the primary source of power for the motorcycle’s electrical system. It provides the initial power to start the engine and powers the electrical accessories when the engine is not running. The battery in the 1979 GS750 is typically a 12-volt, lead-acid battery.
- Stator:The stator is an AC generator that produces alternating current (AC) electricity when the engine is running. The stator is mounted on the engine crankshaft and uses the rotation of the engine to generate electricity. The generated electricity is used to charge the battery and power the motorcycle’s electrical accessories.
- Regulator/Rectifier:The regulator/rectifier is a crucial component that regulates the voltage output of the stator and converts the AC electricity into direct current (DC) electricity. This DC electricity is then used to charge the battery and power the motorcycle’s electrical accessories.
- Wiring Harness:The wiring harness is a network of wires that connects all the electrical components of the motorcycle. It provides the pathways for electricity to flow from the battery, stator, and regulator/rectifier to the lights, ignition system, and other electrical accessories.
- Ignition System:The ignition system is responsible for generating the spark that ignites the fuel-air mixture in the engine’s cylinders. The ignition system typically includes an ignition coil, spark plugs, and an ignition switch. The ignition system is powered by the battery and receives a signal from the stator to generate the spark.
Common Issues in the 1979 Suzuki GS750 Electric System
Common issues that can arise in the 1979 Suzuki GS750 electric system include:
- Battery Problems:A weak or dead battery can prevent the motorcycle from starting or cause electrical problems. Common causes include a faulty battery, a loose connection, or a parasitic drain on the battery.
- Stator Issues:A faulty stator can cause a loss of power to the electrical system, leading to dim headlights, a weak spark, or a failure to charge the battery. Common causes include worn stator windings, a broken stator wire, or a faulty stator connector.
- Regulator/Rectifier Issues:A faulty regulator/rectifier can cause overcharging of the battery, leading to battery damage, or undercharging, leading to a loss of power to the electrical system. Common causes include a faulty regulator, a faulty rectifier, or a faulty connection.
- Wiring Harness Issues:Damaged or corroded wires in the wiring harness can cause a loss of power to specific electrical components or create short circuits. Common causes include chafed wires, corroded connectors, or broken wires.
- Ignition System Issues:A faulty ignition system can prevent the engine from starting or cause misfiring. Common causes include a faulty ignition coil, worn spark plugs, or a faulty ignition switch.
Electrical Diagram Interpretation: 1979 Suzuki Gs750elec. Diagram
The electrical diagram for the 1979 Suzuki GS750 is a complex network of interconnected components that work together to power the motorcycle’s various systems. Understanding the diagram is essential for diagnosing electrical problems, troubleshooting issues, and performing repairs.The diagram is a visual representation of the electrical system, showing the flow of electricity from the battery to the various components.
It Artikels the different circuits, including the charging circuit, lighting circuit, and ignition circuit, and highlights the key components that make up each circuit.
Charging Circuit
The charging circuit is responsible for charging the battery and providing power to the electrical system while the engine is running. This circuit comprises several components, including the alternator, regulator, battery, and wiring harness. The alternator generates alternating current (AC) when the engine is running.
This AC current is then converted to direct current (DC) by the regulator, which also controls the voltage output of the alternator. The DC current is then supplied to the battery and other electrical components. The charging circuit ensures that the battery remains charged, allowing the motorcycle to start and operate properly.
The flow of electricity in this circuit can be summarized as follows:* Alternator:Generates AC current when the engine is running.
Regulator
Converts AC current to DC current and regulates the voltage output of the alternator.
Battery
Stores the DC current and provides power to the electrical system when the engine is off.
Wiring Harness
Finding a detailed 1979 Suzuki GS750Elec. diagram can be tricky, but understanding the electrical system is crucial for any repairs or modifications. If you’re looking for a similar resource for a different classic vehicle, you might find a 192-97 LT1 diagram helpful.
Both diagrams, though for different vehicles, offer insights into the intricacies of engine and electrical components, essential for any serious mechanic or enthusiast.
Carries the electrical current to the various components.
Lighting Circuit
The lighting circuit provides power to the motorcycle’s headlights, taillights, and turn signals. This circuit includes the headlight switch, taillight switch, turn signal switch, and various bulbs and wiring. The lighting circuit operates independently of the charging circuit, drawing power directly from the battery.
The flow of electricity in this circuit can be summarized as follows:* Battery:Provides power to the lighting circuit.
Headlight Switch
Controls the flow of electricity to the headlights.
Taillight Switch
Controls the flow of electricity to the taillights.
Turn Signal Switch
Controls the flow of electricity to the turn signals.
Bulbs
Convert electrical energy into light.
Wiring Harness
Carries the electrical current to the various components.
Ignition Circuit, 1979 suzuki gs750elec. diagram
The ignition circuit is responsible for generating the spark that ignites the fuel-air mixture in the engine’s cylinders. This circuit comprises several components, including the ignition switch, ignition coil, spark plugs, and wiring harness. The ignition circuit is powered by the battery and is controlled by the ignition switch.
When the ignition switch is turned on, the battery sends power to the ignition coil, which transforms the low voltage DC current into high voltage AC current. This high voltage current is then sent to the spark plugs, where it creates a spark that ignites the fuel-air mixture.
The flow of electricity in this circuit can be summarized as follows:* Battery:Provides power to the ignition circuit.
Ignition Switch
Controls the flow of electricity to the ignition coil.
Ignition Coil
Transforms low voltage DC current into high voltage AC current.
Spark Plugs
Create a spark to ignite the fuel-air mixture.
Wiring Harness
Carries the electrical current to the various components.
Troubleshooting Common Electrical Problems
The 1979 Suzuki GS750, a classic motorcycle, can occasionally encounter electrical issues. Understanding the common problems and troubleshooting techniques can help you diagnose and resolve these issues effectively. This section will guide you through common electrical problems, including starting issues, electrical failures, and lighting problems.
Starting Issues
Starting problems can be caused by a variety of electrical issues. These can include a faulty starter relay, a dead battery, a problem with the ignition system, or a faulty starter motor. Here’s a step-by-step guide to troubleshoot starting issues:
- Check the Battery:Ensure the battery is fully charged. Use a multimeter to measure the battery voltage. A fully charged battery should have a voltage of around 12.6 volts. If the battery is low, charge it or replace it.
- Inspect the Battery Connections:Make sure the battery terminals are clean and tight. Corrosion can hinder the flow of electricity. Clean the terminals with a wire brush and tighten the connections.
- Test the Starter Relay:The starter relay acts as a switch, connecting the battery to the starter motor when the ignition key is turned. Use a multimeter to check the relay’s continuity. If the relay is faulty, replace it.
- Examine the Starter Motor:If the starter motor is not engaging, it may be faulty. Use a multimeter to check the starter motor’s continuity. If the motor is faulty, it will need to be replaced.
- Inspect the Ignition System:The ignition system includes the ignition switch, ignition coil, and spark plugs. Check the ignition switch for proper operation. Use a multimeter to test the ignition coil for continuity. Ensure the spark plugs are clean and have the correct gap.
Electrical Failures
Electrical failures can manifest as lights not working, gauges not displaying information, or other electrical components malfunctioning.These failures can be caused by a variety of factors, including:
- Faulty Wiring:Damaged or corroded wiring can interrupt the flow of electricity. Inspect the wiring for any breaks, chafing, or corrosion.
- Blown Fuses:Fuses protect electrical circuits from overloads. If a fuse blows, it needs to be replaced with a fuse of the same amperage.
- Faulty Switches:Switches can fail, preventing electricity from flowing to the connected components. Check the switches for proper operation.
- Faulty Electrical Components:Any electrical component, such as lights, gauges, or relays, can fail. Use a multimeter to test the components for continuity.
Lighting Problems
Lighting problems can include headlights, taillights, or turn signals not working.Here’s how to troubleshoot lighting problems:
- Check the Bulbs:Ensure the bulbs are not burnt out. Replace any burnt-out bulbs with new ones.
- Inspect the Wiring:Inspect the wiring for any breaks, chafing, or corrosion. Repair or replace any damaged wiring.
- Test the Switches:Check the headlight switch, taillight switch, and turn signal switches for proper operation.
- Verify the Fuses:Inspect the fuses related to the lighting system. Replace any blown fuses.
Understanding Electrical Components
The electrical system of a 1979 Suzuki GS750 relies on several key components to generate, regulate, and distribute power. Understanding how these components work and identifying their potential failures is crucial for troubleshooting electrical problems.
Stator
The stator is a stationary component located within the engine’s crankcase. It is responsible for generating alternating current (AC) electricity through electromagnetic induction. When the engine rotates, the rotor (a magnet) spins inside the stator, creating a changing magnetic field that induces an electrical current in the stator windings.
This current is then used to power the electrical system of the motorcycle.
The stator’s primary function is to convert mechanical energy into electrical energy.
The stator consists of a series of windings wrapped around a laminated iron core. The core is made of thin sheets of iron that are insulated from each other, reducing eddy current losses. The windings are connected to a series of terminals that allow the AC current to be directed to the regulator/rectifier.The stator can fail in several ways:
- Open circuit: This occurs when a break in the stator winding prevents current from flowing. The symptom is a complete loss of electrical power.
- Short circuit: This occurs when the insulation between the stator windings breaks down, allowing current to flow between them. The symptom is a decrease in charging output and potential overheating.
- Intermittent connection: This occurs when a loose connection or damaged wire prevents current from flowing consistently. The symptom is fluctuating electrical power.
Regulator/Rectifier
The regulator/rectifier is responsible for converting the AC current generated by the stator into direct current (DC) and regulating the voltage to a safe level for the motorcycle’s electrical system. The regulator/rectifier consists of two main components: a rectifier and a voltage regulator.
The regulator/rectifier’s primary function is to convert AC current to DC current and regulate the voltage to a safe level.
The rectifier converts AC current to DC current by using diodes. Diodes are semiconductor devices that allow current to flow in one direction only. The rectifier converts the AC current to DC current by allowing only the positive half-cycles of the AC waveform to pass through.The voltage regulator ensures that the voltage supplied to the motorcycle’s electrical system remains within a safe range.
It does this by controlling the amount of current flowing from the stator to the battery. If the voltage is too high, the regulator will reduce the current flow, and if the voltage is too low, the regulator will increase the current flow.The regulator/rectifier can fail in several ways:
- Diode failure: This occurs when a diode in the rectifier fails, preventing current from flowing properly. The symptom is a decrease in charging output or a complete loss of electrical power.
- Voltage regulator failure: This occurs when the voltage regulator fails to regulate the voltage properly. The symptom is an overcharging or undercharging battery.
- Internal short circuit: This occurs when a short circuit develops inside the regulator/rectifier. The symptom is a decrease in charging output or a complete loss of electrical power.
Ignition Coil
The ignition coil is a transformer that converts low-voltage DC current from the battery into high-voltage AC current that is used to fire the spark plugs. The ignition coil consists of two windings: a primary winding and a secondary winding.
The primary winding has fewer turns of wire than the secondary winding.
The ignition coil’s primary function is to convert low-voltage DC current to high-voltage AC current.
When the ignition switch is turned on, the primary winding is energized by the battery. This creates a magnetic field around the primary winding. When the ignition system sends a signal to the ignition coil, the primary circuit is interrupted, causing the magnetic field to collapse.
This collapse in the magnetic field induces a high-voltage current in the secondary winding. This high-voltage current is then sent to the spark plugs, causing them to fire.The ignition coil can fail in several ways:
- Open circuit: This occurs when a break in the primary or secondary winding prevents current from flowing. The symptom is a lack of spark at the spark plugs.
- Short circuit: This occurs when the insulation between the primary and secondary windings breaks down, allowing current to flow between them. The symptom is a weak spark or no spark at the spark plugs.
- Intermittent connection: This occurs when a loose connection or damaged wire prevents current from flowing consistently. The symptom is an intermittent spark or no spark at the spark plugs.
Upgrade Options
The 1979 Suzuki GS750, while a classic motorcycle, can benefit from modern upgrades to its electrical system. These upgrades not only enhance performance and reliability but also provide a more enjoyable riding experience.
Modern Electronic Ignition Systems
Modern electronic ignition systems offer several advantages over the points-based system found in the 1979 GS750.
- Increased Spark Energy:Electronic ignition systems generate a stronger spark, leading to improved combustion and increased horsepower.
- Precise Timing:Electronic ignition systems provide more accurate and consistent spark timing, resulting in smoother engine operation and better fuel efficiency.
- Elimination of Points:Electronic ignition systems eliminate the need for mechanical points, which are prone to wear and tear, requiring regular adjustment and replacement.
- Improved Reliability:Electronic ignition systems are more reliable than points-based systems, reducing the risk of electrical failures and ensuring consistent engine performance.
Upgrading the Charging System
The stock charging system on the 1979 GS750 may struggle to keep up with the demands of modern accessories, such as heated grips, auxiliary lights, and GPS devices. Upgrading the charging system can ensure adequate power for all electrical components, even when running these accessories.
- Higher Output Alternator:Replacing the stock alternator with a higher output unit can provide more power to the electrical system. Consider an alternator with an output of at least 400 watts to handle the increased demand.
- Larger Battery:A larger battery with higher cranking amps can provide more reserve power for starting the engine and running accessories. Look for a battery with a capacity of at least 12Ah.
- Improved Regulator/Rectifier:Modern regulators/rectifiers are more efficient and reliable than older units. Upgrading to a modern regulator/rectifier can ensure proper voltage regulation and prevent damage to the electrical system.
Expert Answers
What is the purpose of the stator in the 1979 Suzuki GS750 electric system?
The stator is responsible for generating alternating current (AC) power, which is then converted to direct current (DC) by the regulator/rectifier to charge the battery and power the electrical components.
How do I check the continuity of a wire in the wiring harness?
Use a multimeter set to the continuity setting. Place one probe on one end of the wire and the other probe on the other end. If the multimeter beeps, the wire has continuity, indicating it is not broken.
What are some common signs of a faulty regulator/rectifier?
Overcharging, causing the battery to overheat and potentially explode, or undercharging, leading to battery drain and starting problems, are common signs. You might also notice dim headlights or other electrical components not working properly.
