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How to Troubleshoot a Craftsman Push Mower That Won't Start

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Jason Politte/Demand Media

Warning

Take care when handling the sharp mower blade.

Using a Craftsman push mower provides a speedy and efficient way to mow the lawn. Sometimes these mowers break down or start acting "funny," causing the mower act sluggish or not turn on. Replacing some parts and inspecting the mower for damage can help troubleshoot any lawn mower problems that are evident.

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Jason Politte/Demand Media

Check for any leaks under the Craftsman push mower. Any leaking from the lines indicates a line problem. If there is oil or gas under the motor itself, it likely is a motor problem.

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Jason Politte/Demand Media

Change the spark plug if the mower has no leaks. Change it with the recommended spark plug in the manual. Craftsman recommends changing the spark plugs every year.

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Jason Politte/Demand Media

Change the air filter for better air flow. Craftsman also recommends changing the air filter every year. Locate the filter and replace it with one recommended in the manual.

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Jason Politte/Demand Media

Replace the line filter. A clogged filter drastically decreases the mower's engine production.

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Jason Politte/Demand Media

Check the blade to make sure that the arbor, to which the blade connects, is not blocked. This could prevent the mower from starting.

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