How to Check a Briggs Coil

Quck answer

To test a Briggs coil, follow these steps:

1. Disconnect the spark plug wire from the spark plug.

2. Use a multimeter to measure the resistance between the primary and secondary terminals of the coil.

3. If the resistance is within the specified range (usually around 2-5 ohms), the coil is working properly.

4. If the resistance is outside the specified range, the coil may be faulty and needs to be replaced.

5. Additionally, check for any visible signs of damage or wear on the coil.

6. Reconnect the spark plug wire and start the engine to ensure proper ignition.

Remember to always consult the manufacturer’s manual for specific instructions and recommended resistance values for your particular Briggs coil.

Having a well-functioning engine relies on good fuel, mechanical, and ignition systems. Sometimes, issues may arise that indicate a faulty ignition system. In the case of a Briggs and Stratton engine, the ignition coil should be the first thing to check. Most newer models use magnetron coils, which are self-contained ignition systems powered by the flywheel’s magnets. Testing one of these coils is a relatively straightforward process.

Step 1

Attach the spark tester to a clean metal part of the engine. Disconnect the spark plug wire from the spark plug and connect it to the spark tester. Try starting the engine and observe the spark plug tester. If you do not see any spark while the engine is spinning, proceed to Step 2.

Step 2

Connect the negative probe of the ohmmeter to a metal part of the engine, and then connect the positive probe to the spark plug wire.

Step 3

Measure the resistance on the circuit you’ve just created. A normal reading should range from 2,500 to 5,000 ohms. Anything higher or lower indicates a faulty coil that needs to be replaced.

FAQ

1. What is a Briggs coil and why is it important to test it?

A Briggs coil, also known as an ignition coil, is a crucial component of a Briggs & Stratton engine. It is responsible for generating and supplying the high voltage needed to ignite the fuel-air mixture in the engine’s combustion chamber. Testing the Briggs coil is important to ensure that it is functioning properly. A faulty coil can lead to engine misfires, poor performance, and difficulty starting the engine.

2. How can I test a Briggs coil?

To test a Briggs coil, you will need a multimeter. First, disconnect the spark plug wire from the spark plug. Then, locate the coil and unplug the small wire connected to it. Set your multimeter to the ohms setting. Connect one lead of the multimeter to the spark plug wire and the other lead to the metal body of the engine. If the multimeter shows a reading between 2,500 and 5,000 ohms, the coil is functioning properly. If the reading is outside of this range, the coil may be faulty and should be replaced.

3. Are there any other signs that indicate a faulty Briggs coil?

Yes, there are several signs that may indicate a faulty Briggs coil. These include engine misfires, difficulty starting the engine, a weak spark, and poor engine performance. If you notice any of these symptoms, it is recommended to test the coil using a multimeter as described earlier. Additionally, if the coil is visibly damaged or shows signs of wear and tear, such as cracks or corrosion, it is likely that it needs to be replaced.

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