Tag: Ignition Coil

The ignition coil for a Briggs & Stratton engine is a critical component responsible for generating the spark needed to ignite the fuel-air mixture in the engine’s combustion chamber. Here are some key points about the ignition coil for Briggs & Stratton engines:

Key Features:

• Compatibility: Ensure the ignition coil is compatible with your specific Briggs & Stratton engine model. The model number of the engine will help you find the correct part.
• Functionality: The coil converts the low voltage from the battery or magneto into the high voltage required to create a spark at the spark plug.
• Installation: Typically, the coil is mounted near the flywheel. Installation usually involves removing the flywheel shroud, disconnecting the old coil, and attaching the new one. The gap between the coil and flywheel must be set correctly for proper operation.

Common Issues:

• Weak or No Spark: A failing coil can cause the engine to produce a weak spark or no spark at all, leading to starting issues.
• Overheating: If the coil overheats, it can lead to misfires or cause the engine to stop running.

Replacement Process:

1. Safety First: Disconnect the spark plug wire and remove the engine cover.
2. Locate and Remove: Find the ignition coil near the flywheel and remove the mounting screws.
3. Install New Coil: Place the new coil in position and set the correct air gap between the flywheel and coil using a feeler gauge (usually 0.010 to 0.014 inches, depending on the model).
4. Reassemble: Reattach the engine cover and connect the spark plug wire.

Purchasing Tips:

• Buy from a reputable dealer or directly from Briggs & Stratton to ensure you get a genuine part.
• Keep your engine’s model and type number handy when purchasing to ensure compatibility.

Ignition coils are essential components in Briggs & Stratton engines, as they are responsible for transforming the low voltage from the battery into the high voltage needed to create a spark in the spark plug. Here’s a guide on selecting, installing, and troubleshooting an ignition coil for Briggs & Stratton engines:

Selecting the Right Ignition Coil

1. Model and Engine Type: Ensure the ignition coil is compatible with your specific Briggs & Stratton engine model and type. Refer to the engine’s manual or specifications to identify the correct part number.
2. OEM vs. Aftermarket: Decide whether you want an original equipment manufacturer (OEM) part or an aftermarket option. OEM parts are guaranteed to fit and perform well, but aftermarket parts can be a cost-effective alternative if chosen carefully.
3. Compatibility: Some ignition coils are designed to fit multiple models. Check the compatibility list provided by the manufacturer to ensure it will work with your engine.

Installing the Ignition Coil

1. Safety First: Ensure the engine is off and disconnect the spark plug wire to prevent accidental starting.
2. Remove the Engine Cover: Use a screwdriver or wrench to remove the screws or bolts holding the engine cover in place.
3. Locate the Ignition Coil: The ignition coil is typically mounted near the flywheel. Identify its location and note how it is connected.
4. Disconnect the Old Coil: Disconnect any wires connected to the old ignition coil and remove the mounting screws or bolts. Carefully take out the old coil.
5. Install the New Coil: Position the new ignition coil in place and secure it with the mounting screws or bolts. Connect the wires to the appropriate terminals on the new coil.
6. Adjust the Air Gap: The air gap between the ignition coil and the flywheel is critical for proper operation. Use a feeler gauge to set the correct gap, typically specified in the engine’s manual (usually around 0.010 to 0.014 inches).
7. Reassemble the Engine: Replace the engine cover and secure it with screws or bolts. Reconnect the spark plug wire.

Troubleshooting Common Issues

1. No Spark: If the engine won’t start and you suspect an ignition coil issue, check for a spark by removing the spark plug, reconnecting it to the spark plug wire, and grounding it against the engine block. Crank the engine and look for a spark. No spark may indicate a faulty coil or a problem with the wiring.
2. Weak Spark: A weak spark can cause poor engine performance. Check the air gap adjustment, as an incorrect gap can result in a weak spark. Also, inspect the spark plug for wear and replace if necessary.
3. Intermittent Spark: If the spark is inconsistent, check the connections to the ignition coil for any loose or corroded wires. Ensure the coil is securely mounted and the air gap is properly set.
4. Engine Misfires: Misfires can be caused by a faulty ignition coil. If replacing the coil doesn’t resolve the issue, inspect other ignition system components, such as the spark plug, spark plug wire, and flywheel magnet.

Conclusion

Proper selection, installation, and maintenance of the ignition coil are crucial for the reliable operation of your Briggs & Stratton engine. Always refer to your engine’s manual for specific instructions and specifications. If you encounter persistent issues, consult with a professional technician for further diagnosis and repair.