Wrench

Diagnose & TroubleshootSelf-Propelled Mowers

Select one of the symptoms below to find possible causes and common solutions for your MTD self-propelled mower.

Unit will not start

Possible Causes

Corrective Actions

1Control handle is not engaged

Engage control handle

Spark plug wire is disconnected

Connect spark plug wire

Fuel tank empty or stale fuel

Replace with clean, fresh gas

Blocked fuel line

Clean fuel line

Faulty spark plug

Replace, clean, or adjust gap

Engine flooded

Wait to restart, do not prime

Air filter filled with dirt or debris

Replace or clean air filter

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