Trouble Shooting Guide - Husqvarna W21K, W21SK, W21SBK, W53SBEK, W53SEK, W21KC, W21SKC, W21SBKC Operator's Manual

21" push mower
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Trouble Shooting Guide

Problem
The engine will not start.
Loss of Power
Poor cut - uneven
Excessive vibration
Starter rope hard to pull
TROUBLE SHOOTING GUIDE
Cause
Dirty air filter.
Out of fuel.
Stale fuel.
Water in fuel.
Spark plug wire is disconnected.
Bad spark plug.
Loose blade or broken blade adapter.
Control bar in released position.
Control bar defective.
Fuel valve lever (if equipped) in OFF position.
Rear of lawn mower housing or cutting blade
dragging in heavy grass.
Cutting too much grass.
Dirty air filter.
Buildup of grass, leaves and trash under mower.
Too much oil in engine.
Walking speed too fast.
Worn, bent, or loose blade.
Wheel heights uneven.
Buildup of grass, leaves and trash under mower.
Worn, bent or loose blade.
Bent engine crankshaft.
Engine flywheel brake is on when control bar is
released.
Bent engine crankshaft
Blade adapter broken.
Blade dragging in grass.
44
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