A chainsaw ignition coil is an essential component that helps transfer electrical energy to the spark plug, which starts the engine. A faulty ignition coil can cause a chainsaw not to start or run poorly. In this blog post, we will cover how to test a chainsaw coil, including the symptoms of a bad chainsaw coil, the required tools, and step-by-step instructions for testing a chainsaw coil both with and without a multimeter. We will also cover how to test a Stihl chainsaw coil with a multimeter and ignition coil resistance and answer five frequently asked questions.

Symptoms of a Bad Chainsaw Coil

• The chainsaw will not start or struggle to start.
• The engine runs poorly or stalls.
• The engine backfires.
• The chainsaw produces a weak or no spark.
• Required Tools to Test Chainsaw Coil
• A chainsaw spark tester
• A multimeter
• Screwdrivers or wrenches (if needed to remove the chainsaw’s air filter cover or flywheel)

Chainsaw Ignition Coil and Its Checking

The chainsaw ignition coil is located near the flywheel and is responsible for generating the spark that starts the engine. To check the ignition coil, you will need to remove the air filter cover and flywheel, if necessary, to access the coil.

How to Test a Chainsaw Coil in 3 Easy Steps?

1. First, remove the air filter cover and flywheel, if necessary, to access the ignition coil.
2. Next, use a chainsaw spark tester to check for a spark at the coil’s terminals.
3. If there is no spark or a weak spark, the ignition coil may be faulty and need to be replaced.

How to Test Chainsaw Coil with a Multimeter?

1. First, set your multimeter to the “ohms” setting.
2. Remove the air filter cover and flywheel, if necessary, to access the ignition coil.
3. Locate the terminals on the ignition coil and touch the multimeter’s probes to them.
4. Check the reading on the multimeter. A healthy ignition coil should have a reading of between 3 and 6 ohms.
5. If the reading is outside this range, it may indicate that the ignition coil is faulty and will need to be replaced.

How to Test a Stihl Chainsaw Coil With a Multimeter?

The process for testing a Stihl chainsaw coil with a multimeter is the same as for testing any other chainsaw coil. However, it’s essential to check the manual to know the correct resistance range for the specific model.

Chainsaw Ignition Coil Resistance

The resistance of a healthy chainsaw ignition coil should be between 3 and 6 ohms. If the resistance is outside this range, it may indicate that the ignition coil is faulty and will need to be replaced.

Frequently Asked Questions

What are the symptoms of a bad chainsaw coil?
The symptoms of a bad chainsaw coil include the chainsaw not starting or struggling to start, the engine running poorly or stalling, the engine backfiring, and the chainsaw producing a weak or no spark.

What tools do I need to test a chainsaw coil?
You will need a chainsaw spark tester and a multimeter to test a chainsaw coil. Screwdrivers or wrenches may be required to remove the chainsaw’s air filter cover or flywheel.

How do I check the ignition coil on a chainsaw?
To check the ignition coil on a chainsaw, you will need to remove the air filter cover and flywheel, if necessary, to access the coil. Use a chainsaw spark tester to check for a spark at the coil’s terminals.

What is the resistance of a healthy chainsaw ignition coil?
A healthy chainsaw ignition coil should have a resistance of between 3 and 6 ohms.

Can a bad chainsaw coil cause the engine to backfire?
Yes, a bad chainsaw coil can cause the engine to backfire.

Conclusion

A faulty ignition coil can cause a chainsaw not to start or run poorly. By learning how to test a chainsaw coil, you can quickly diagnose and fix any issues with your chainsaw’s ignition system. By following the steps outlined in this guide, using the proper tools, and consulting the manual, you can quickly test your chainsaw coil and ensure it is in good working condition. Always wear the appropriate safety gear and follow the manufacturer’s instructions when working on your chainsaw. If you have any doubts or need further assistance, consult a professional.