Engine Will Not Start

Failure to prime engine if the engine is cold.

Fuel tank is empty.

Stale or dirty fuel.

Disconnected or dirty spark plug.

Engine Starts Hard Or Loses Power

Dirty fuel tank cap vents.

Stale or dirty fuel.

Dirty air cleaner element.

Disconnected or dirty spark plug.

Failure to prime engine if the engine is cold.

Engine Runs Rough

Carburetor needs to be cleaned.

Disconnected or dirty spark plug.

Throttle lever not in fast position.

Dirty air cleaner element.

Engine Overheats

Dirty blower housing and cooling fins.

Oil level too low.

Engine Vibrates Too Much

Loose blade bolt.

Blade dull or not balanced.

Mower Pushes Or Pulls Hard

Rear axle not lubricated.

Traction clutch needs adjustment.

Mower Mows Unevenly

Pushing mower too fast.

Mowing pattern not changed.

Wheel levers not adjusted in the same position.

Blade dull or not balanced.

Discharge Chute Plugs

Grass not dry.

Cutting height not raised high enough.

Dirty or full grass bag.

Mowing too fast.

Engine not in fast throttle position.

Mower Jerks Or Will Not Self-propel

Traction belt broken.

Traction clutch not adjusted.

Dirty transmission.

Gear shift lever not in gear.

Mulched Grass Appearance Is Poor: Clumps, Excessive Clippings, Rough Cut, Etc.

Grass not dry.

Mowing too fast.

Engine not in fast throttle position.

Blade dull or not balanced.

Cutting height set too low.