Diagnostic CenterZero-turn Mowers

Engine runs erratic

Possible Causes

Corrective Actions

1Your mower is running with CHOKE activated

Pull the throttle/choke control lever rearward from the choke position

Spark plug wire(s) loose

Connect spark plug wire(s).

Blocked fuel line or stale fuel

Clean fuel line; full tank with clean fresh gasoline and replace fuel filter.

Vent in gas cap plugged

Clear vent or replaces cap if damaged.

Water or dirt in fuel system

Drain fuel tank. Refill with clean, fresh gas.

Dirty air cleaner

Replace air cleaner paper element or clean foam pre-cleaner (depending on your model).

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