How to Repair a Craftsman Leaf Blower


Repairing a Craftsman leaf blower can be done by first determining what type of problem is occurring with the machine. Problems that you can easily repair on the leaf blower include the engine not starting and the engine not idling or dying when at full throttle. These are problems that can be easily repaired when an adjustment is made to the carburetor. You will first need to prepare the leaf blower and then make an idle speed adjustment.

Things You'll Need

  • Screwdriver

Preparing the Leaf Blower

  • Find the idle speed screw and the mixture screw that are located on the backside of the machine. The idle speed screw is on the left and the mixture screw is on the right.

  • Turn the mixture screw with the screwdriver clockwise until the screw is closed. When you can no longer turn the screw it is fully closed and will need one full turn to the left or counterclockwise to open it.

  • Turn the idle speed screw clockwise until you can no longer turn the screw and then open it. Turn the screw three full turns to the left or counterclockwise to open it.

Making Idle Speed Adjustment

  • Pull the starter cord on the machine until it starts and let it run for about three minutes. This will allow the engine to get warm.

  • Set the throttle knob from the "half-choke" position to the "idle" position.

  • Turn the idle speed screw counterclockwise until the engine idles without stalling. If the engine begins to sputter, or you think it might stall, turn the idle screw clockwise a quarter of a turn.

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  • Photo Credit blower image by Horticulture from
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