If your engine idles up and down (surging/hunting), the computer or governor is over‑correcting for an air‑fuel imbalance. These non‑invasive checks help identify the likely cause without repairs.
If your engine dies when turning left or right, the problem is almost always fuel delivery changing with tilt or slosh. These non‑invasive checks help identify the likely cause safely.
If your engine only runs with choke on after warm-up, it’s almost always because the normal “run” mixture is too lean. These safe checks help you identify whether the issue is an air leak, contaminated fuel restricting flow, or fuel quality—without doing repairs yourself.
If your lawn mower pull cord won’t pull or stops partway, the issue is usually a blade/deck jam, a safety brake not releasing, hydro-lock, or a recoil starter problem. Use these safe checks to pinpoint the cause and know when professional service is the right call.
A mower that won’t start at all is almost always dealing with battery, starter, safety switch, fuse, or ignition issues. This guide shows you how to fix each one.
A mower that backfires or pops is almost always dealing with timing issues, carburetor problems, or ignition faults. This guide shows you how to fix each one.
A mower that runs rough or surges is almost always dealing with carburetor blockage, stale fuel, vacuum leaks, or governor issues. This guide shows you how to fix each one.
A mower that vibrates or makes loud noise is almost always dealing with blade imbalance, spindle wear, pulley issues, or debris. This guide shows you how to fix each one.
A mower that won’t start is almost always dealing with fuel, spark, air, safety switch, or battery issues. This guide shows you how to fix each one.
A mower that loses power under load is almost always dealing with fuel, airflow, governor, or deck‑load issues. This guide shows you how to fix each one.