Lawnmower Troubleshooting Tips:
If the air that the engine requires to run is blocked, it can cause the engine to slow down. When the blockage moves or clears, the engine may suddenly rev up in response. Start by changing the air filter and switching to an ethanol-free fuel. If the mower is still sputtering, make sure the deck, fuel filter, spark plugs, and carburetor are clean. Detach the fuel lines.
Common Reasons for Sputtering Lawnmowers:
- Dirty air filters
- Fuel supply blockage
- Dirty carburetor or spark plug
- Old fuel
Lawnmower Engine Pulsation:
Small engines can pulsate for a variety of reasons. One of the most common causes is an uneven fuel-air mixture. This could be caused by a dirty carburetor, clogged air filter, or a carburetor that is out of adjustment.
Engine Issues and Fixes:
- Lawnmower Surging: This situation causes the carburetor idle circuit to supply fuel and the engine – resulting in surging.
- Engine Hunting and Surging: Running lean or issues with the fuel mixture can cause the engine to hunt and surge.
- Lawnmower Revving Up and Down: A blockage in the fuel supply, a bad spark plug, or a dirty/faulty carburetor can lead to this issue.
- Lawnmower Running Rough: A clogged or dirty carburetor can cause rough running or starting problems.
- Briggs and Stratton Engine Surging: Proper adjustment of the carburetor can prevent this issue.
Troubleshooting and Maintenance Tips:
If your lawnmower is coughing, chugging, and sputtering, routine maintenance may resolve the issue. With some troubleshooting, sputtering mowers can often be fixed easily.
Additional FAQs:
- Faulty Spark Plug: A bad spark plug can cause the engine to run rough.
- Starting Issues: Properly cleaning the air filter and ensuring no accidental starting is important.
- Lawnmower Smoking: Blue or white smoke may indicate burning oil due to overfilling or a blown head gasket.
Conclusion:
Understanding the working procedure of a lawnmower engine is essential for proper maintenance and troubleshooting. Regular maintenance and timely repairs can keep your lawnmower running smoothly.