Briggs and Stratton is a reputable brand manufacturing reliable small engines for various applications. The starter solenoid wiring diagram is an essential part of understanding how your engine starts and how to troubleshoot any starting issues. In this article, we will discuss everything you need to know about the Briggs and Stratton starter solenoid wiring diagram, including its functions, components, and troubleshooting tips.
What Is a Starter Solenoid?
A starter solenoid is an electro-mechanical switch responsible for transferring electrical power from the battery to the starter motor. When you turn the ignition key, the solenoid connects the battery and the starter motor, which then cranks the engine. The solenoid also disengages the starter motor from the engine after the engine starts running.
The Briggs and Stratton starter solenoid works similarly to other engines’ starter solenoids, but the wiring diagram may vary depending on the engine model and manufacturer. Understanding the wiring diagram is crucial when troubleshooting any starting issues.
Components of the Briggs and Stratton Starter Solenoid
The Briggs and Stratton starter solenoid consists of several components that work together to ensure proper engine starting. These components include:
| Component | Description |
|---|---|
| Battery | Provides electrical power to the starter motor and solenoid |
| Ignition switch | Activates the starter solenoid when turned to the ‘Start’ position |
| Starter motor | Rotates the engine crankshaft to initiate engine starting |
| Solenoid coil | Generates a magnetic field to move the solenoid plunger |
| Solenoid plunger | Moves the solenoid contacts to connect the battery and starter motor |
| Solenoid contacts | Transfers electrical power from the battery to the starter motor |
Wiring Diagram for Briggs and Stratton Starter Solenoid
The Briggs and Stratton starter solenoid wiring diagram may vary depending on the engine model and manufacturer. However, most Briggs and Stratton engines have a similar wiring diagram that consists of the following components:
- Battery
- Ignition switch
- Starter motor
- Solenoid coil
- Solenoid plunger
- Solenoid contacts
The wiring diagram indicates how the components are connected and the electrical polarity, so you can troubleshoot any starting issues accordingly. Here is a basic wiring diagram for the Briggs and Stratton starter solenoid:
Wiring Diagram Explanation
The wiring diagram consists of six wires that connect the battery, ignition switch, starter motor, and solenoid. Here is a breakdown of the wiring diagram:
- Battery positive (+): Connects to the solenoid coil positive terminal and the starter motor positive terminal.
- Battery negative (-): Connects to the engine ground and the solenoid coil ground terminal.
- Ignition switch start terminal: Connects to the solenoid coil positive terminal.
- Ignition switch accessory terminal: Connects to the ignition coil positive terminal and powers the engine fuel system and accessories.
- Starter motor positive (+): Connects to the solenoid contacts and the battery positive terminal.
- Solenoid contacts: Connects the battery positive terminal to the starter motor positive terminal when the solenoid plunger moves.
FAQs
1. Why is my Briggs and Stratton engine not starting?
If your Briggs and Stratton engine is not starting, there may be several reasons why. First, check the battery voltage and ensure that it is fully charged. Then, check the ignition switch start terminal and verify that it is connected to the solenoid coil positive terminal. Finally, check the starter motor and verify that it is receiving power from the solenoid contacts. You may also need to check other engine components, such as the spark plug, fuel system, and air filter.
2. How do I test the Briggs and Stratton starter solenoid?
To test the Briggs and Stratton starter solenoid, you will need a multimeter. Start by checking the battery voltage and verifying that it is fully charged. Then, disconnect the solenoid wires and set your multimeter to the continuity mode. Test the solenoid coil resistance by touching the multimeter probes to the solenoid coil terminals. If the multimeter shows no continuity, the solenoid coil is defective and needs to be replaced. You can also test the solenoid plunger by applying battery voltage to its terminals and checking its movement. If the plunger does not move, it may be stuck or defective.
3. Can I bypass the Briggs and Stratton starter solenoid?
You can bypass the Briggs and Stratton starter solenoid by connecting the battery positive terminal directly to the starter motor positive terminal using a jumper wire. However, this is not recommended as it can be dangerous and may damage the engine or starter motor.
In conclusion, the Briggs and Stratton starter solenoid wiring diagram is an essential part of understanding how your engine starts and troubleshooting any starting issues. By following the wiring diagram and using the troubleshooting tips provided in this article, you can ensure proper engine starting and prolong the lifespan of your engine.
