Skip to Content

How to Troubleshoot Briggs and Stratton Engines

If your Briggs and Stratton engine will not start, it can be a good idea to start by checking the battery voltage. You can use a voltmeter on each battery terminal to determine how much voltage is present in each. Make sure that the voltage is at least 12 volts. If the engine still won’t start, it is likely that your carburetor needs to be replaced.

Stratton engine won’t start

If your Briggs & Stratton engine won’t start, it’s likely the spark plug. To change it, remove the spark plug. Fit a new spark plug in place of the old one, then tighten the socket with a 15 ft-lb torque wrench. If you’re using a gas-powered mower, the fuel tank may be located beneath the carburetor.

Other possible causes of a Briggs and Stratton engine won’t start include a clogged air filter, a faulty spark plug, or a dirty carburetor. It’s important to clean the carburetor thoroughly, but if the carburetor is still not working, you might need to replace it. Sometimes a bad ignition coil can also cause a Briggs & Stratton engine to stop working. This malfunction prevents the spark plug from getting the proper voltage it needs to start.

While a Briggs & Stratton engine is small, it’s very difficult to diagnose without a proper repair manual. It is important to understand how these engines work, as the power generated by the engine powers the lawnmower’s blade, which rotates over the ground. The engine also drives auxiliary systems, such as an idle speed controller, clutch, air filter, fuel delivery system, and ignition system.

Checking for spark

You can check for spark in your Briggs & Stratton engine yourself with a simple tester. Simply disconnect the engine and place the tester on the spark plug. If there is no spark, you can check the coil, on/off switch assembly, or spark plug wire. Spark plugs carry high voltages and are essential to a healthy engine. If you see a gap, the spark plug or the ignition module is not working.

The ignition coil of a Briggs and Stratton engine is easy to replace and can be cleaned with a file and sandpaper. This simple repair will solve old Briggs & Stratton no spark issues. To check the resistance between the two parts, refer to your engine’s service manual. Make sure the multimeter is set at a 20kO resistance level.

In the early models, the ignition system used breaker points. If your Briggs & Stratton engine has a breaker point system, try checking the flywheel magnets. Unless they’re severely rusted, it’s unlikely to be a problem. If a sparking issue is found in the flywheel, you can replace it by replacing the flywheel.

To check the coil, rotate the flywheel, ensuring it’s properly positioned. Make sure the coil is installed properly and centered. If it’s not, check other suggestions as well. In the case of twin cylinder engines, disconnect the kill wire from each coil. Once you’ve checked these two parts, start the engine. If you hear a popping sound, you may have a safety switch or short to ground.

Checking for faulty ignition

If you suspect that your Briggs and Stratton engine has a faulty ignition, you should first look at the spark plug. This part is often the easiest to check, so you may want to grab an old spark plug and use it as a test. Then, clip the tester to the ignition cable. Spin the engine and listen for a spark. If there is no spark, the ignition coil probably needs to be replaced.

Another cause of a faulty ignition is the flywheel. A faulty flywheel magnet will prevent your engine from sparking. This is a sign of a faulty ignition armature coil, and most armature coils cannot be repaired. The air-gap setting between the ignition coil and the engine flywheel can cause a low-spark condition. You may also notice rust on the flywheel magnets or on the legs of the ignition armature coil. To fix this problem, you may have to clean the components and install a new spark plug.

Before you replace the ignition module, you should check other areas of the ignition system. If these tests indicate that the ignition is working properly, you should take your Briggs & Stratton engine to an Authorized Dealer. If you suspect the spark plug is bad, you can replace it with a new one from the manufacturer. The ignition module is usually an electronic component and can fail because of high temperatures, altitude, and other factors.

You can check for faulty ignition in Briggs and Stratton engines by using a multimeter. Ensure the ignition coil is set to the proper resistance range using a multimeter. The resistance of the ignition coil should be around two to nine ohms. You should be able to find the correct resistance reading by checking the service manual. Once you have found the right coil, you can clean the rest of the components and install a new ignition coil.

Checking for faulty carburetor

Troubleshooting a carburetor can be a difficult task if you do not know the basic theory behind this device. While there are multiple categories of carburetor problems, it is essential to know how to identify them. You may also find that one or more of the symptoms occurs simultaneously. To make the process more effective, you should understand the theory behind carburetors and follow procedures carefully.

To check for a faulty carburetor, first check the spark plug for leakage. If it’s damp, it’s likely the carburetor is leaking. If it’s not, then the carburetor’s gasket isn’t sealing properly with the engine. A faulty carburetor can also be a sign of an engine failure.

Some carburetors use a primer bulb system that forces fuel up through a float bowl. The solenoid activates when a voltage is applied to its coil. Make sure to use a test kit for Briggs and stratton engines in order to avoid making a costly mistake. If you can’t find a faulty carburetor, consult a professional.

Troubleshooting a carburetor is an arduous task, but it’s necessary for effective repairs. While true factory defects are rare, it’s not impossible to identify a problem in the field. A faulty carburetor can result in performance issues that range from poor fuel economy to difficulty starting. These can be caused by a number of factors, including a lack of fuel or an obstruction in the flow of fuel.

If your Briggs and stratton engine emits blue smoke, it might be due to a bad cylinder head gasket. This gasket is sandwiched between the cylinder block and the cylinder head. If it is stuck, you can spray WD40 to free it. A valve stem is also susceptible to sticking. Try adjusting the valve stem to ensure that it does not block the valve.

Checking for faulty intake valve

To start checking for a faulty intake valve, you need to locate the spark plug wire and pull it close to the engine’s body. You can also test the ignition coil by using the recoil starter. If there is no spark coming from the spark plug boot, the ignition coil may be faulty and needs to be replaced. To test the valve, follow the instructions below.

Next, disconnect the outlet hose from the carburetor and intake sides of the fuel valve. If gasoline flows freely through the outlet hose, then the fuel filter is probably clogged. Replace the fuel filter if necessary. If the problem persists, check the fuel line and fuel filter. Usually, the intake valve is blocked with carbon or grit.