Possible Causes:
1. Fuel System Problems:
* Fuel Shortage: The engine may be running out of fuel. Check the fuel tank level and make sure the fuel line is clear of blockages.
* Dirty Fuel Filter: A clogged fuel filter restricts fuel flow. Replace the filter.
* Bad Fuel: Old or contaminated fuel can cause starting issues. Drain and replace with fresh, high-quality fuel.
* Fuel Pump Malfunction: The fuel pump may not be delivering fuel properly. Check the pump for leaks, cracks, or signs of wear.
2. Ignition System Issues:
* Spark Plug Issues: A fouled or worn spark plug can prevent proper ignition. Inspect and clean/replace the spark plug.
* Spark Plug Wire Problems: A cracked or damaged wire can cause a weak spark. Inspect the wire for damage and replace if needed.
* Ignition Coil Failure: The ignition coil may not be producing enough voltage. Test the coil for proper resistance.
3. Air Intake Problems:
* Clogged Air Filter: A dirty air filter restricts air flow. Clean or replace the air filter.
* Air Leaks: Cracks or holes in the air intake system can cause a lean fuel mixture, leading to poor running. Check for leaks and repair them.
4. Carburetor Problems:
* Dirty Carburetor: Dirt and debris can clog the carburetor's jets, affecting fuel flow. Clean the carburetor thoroughly.
* Carburetor Adjustment Issues: The carburetor may need to be adjusted for proper fuel/air mixture. This often requires specialized tools and knowledge.
5. Engine Problems:
* Valve Problems: If the valves are not seating properly, the engine may not run smoothly.
* Compression Issues: Low compression can prevent the engine from starting or running properly. This can be caused by worn piston rings or cylinder wear.
Troubleshooting Steps:
1. Start with the Simple:
* Fuel: Make sure you have fresh, clean fuel in the tank.
* Air Filter: Check and clean the air filter.
* Spark Plug: Inspect, clean, or replace the spark plug.
2. Inspect for Leaks:
* Fuel Lines: Check for leaks in the fuel lines.
* Intake Manifold: Look for cracks or holes in the intake manifold.
3. If the engine still dies:
* Check the fuel pump: If you suspect a fuel pump issue, test it or replace it.
* Clean the carburetor: Thoroughly clean the carburetor or consider having it professionally cleaned.
* Consider the ignition coil: If you suspect a coil failure, test it or replace it.
Important Notes:
* Safety First: Always disconnect the spark plug wire before working on any engine components.
* Maintenance: Regular maintenance can help prevent many of these issues.
* Consult a Manual: Refer to your Briggs & Stratton engine manual for specific troubleshooting instructions and maintenance procedures.
If you're not comfortable working on engines, it's best to take it to a qualified mechanic for diagnosis and repair.
