Stihl chainsaws are known for their durability and long-lasting performance. However, even the most reliable chainsaws can experience issues from time to time. One common issue that users may face is a faulty ignition coil. In this article, we will discuss the wiring diagram for a Stihl chainsaw ignition coil and provide some troubleshooting tips to help you resolve any issues that you may encounter.
What is an Ignition Coil?
Before we delve into the wiring diagram for a Stihl chainsaw ignition coil, it is important to understand what an ignition coil does. The ignition coil is responsible for providing the high voltage needed to ignite the fuel mixture in the engine. It works by converting the low voltage from the battery into a high voltage that is required to power the spark plug.
Without a functioning ignition coil, the chainsaw will not start or run properly. A faulty ignition coil can also cause the engine to misfire, stall or even fail to start at all. This is why it is important to ensure that your chainsaw’s ignition coil is in good working condition.
Wiring Diagram for Stihl Chainsaw Ignition Coil
The wiring diagram for a Stihl chainsaw ignition coil is relatively simple. There are typically two wires that run from the ignition coil to the spark plug. The first wire is connected to the positive terminal of the ignition coil, while the second wire is connected to the negative terminal of the coil.
It is important to note that the color coding of the wires may vary depending on the model of your Stihl chainsaw. Therefore, it is important to reference your owner’s manual or contact a Stihl dealer for the correct wiring diagram for your specific model.
Positive Terminal Connection
The positive terminal connection of the ignition coil is typically connected to the power source, which is the battery. This wire will usually be red in color. The positive terminal of the ignition coil is also connected to the kill switch, which is used to shut off the engine.
When the kill switch is activated, it breaks the circuit between the positive terminal of the ignition coil and the battery, thus cutting off the power to the ignition coil and stopping the engine.
Negative Terminal Connection
The negative terminal connection of the ignition coil is typically connected to the spark plug. This wire will usually be black in color. When the engine is running, the ignition coil will create a high voltage pulse that is sent through the spark plug wire to the spark plug. This voltage pulse is what ignites the fuel mixture in the engine and causes the engine to run.
Troubleshooting Tips
If you are experiencing issues with your Stihl chainsaw’s ignition coil, there are a few troubleshooting tips that you can try before replacing the coil.
Check for Loose Connections
One common cause of ignition coil failure is loose connections. If the connections between the ignition coil and the battery or spark plug are loose, it can cause the coil to malfunction. Therefore, it is important to check all connections to ensure that they are tight and secure.
Check for Corrosion
Another common cause of ignition coil failure is corrosion on the terminals. Over time, moisture and rust can cause the terminals to corrode, which can interfere with the flow of current. Therefore, it is important to regularly inspect the ignition coil and clean any corrosion off the terminals.
Check the Kill Switch
If your chainsaw is not starting or running properly, it may be due to a faulty kill switch. The kill switch is responsible for shutting off the engine, and if it is not functioning properly, it can cause the ignition coil to fail. Therefore, it is important to check the kill switch to ensure that it is functioning properly.
FAQ
| Question | Answer |
|---|---|
| How do I know if my ignition coil is faulty? | If your chainsaw is not starting or running properly, it may be due to a faulty ignition coil. A simple way to test the coil is to use a spark tester. Simply connect the tester to the spark plug wire and then pull the starter cord. If the tester does not light up, it may be an indication that the ignition coil is faulty. |
| Can I repair a faulty ignition coil? | In most cases, it is not possible to repair a faulty ignition coil. If the coil is malfunctioning, the best course of action is to replace it with a new one. |
| What is the lifespan of an ignition coil? | The lifespan of an ignition coil can vary depending on several factors, including usage, maintenance, and environmental conditions. Generally, an ignition coil can last anywhere from 50,000 to 100,000 miles. |
In conclusion, a properly functioning ignition coil is essential for the proper operation of your Stihl chainsaw. By understanding the wiring diagram and following the troubleshooting tips outlined in this article, you can ensure that your chainsaw’s ignition coil is in good working condition, which will help to extend the lifespan of your chainsaw and ensure reliable performance.
