4-Stroke Small Gas Engine Spark Plug Replacement

Introduction

In a gasoline engine, a Spark Plug provides an electrical spark to ignite to fuel inside, generating horsepower. Over time, a Spark Plug's ability to ignite will reduce from wear and eventually not work. Replacing Spark Plugs ensures your engine will run at optimal efficiency.

What you need

Step 1 Spark Plug

4-Stroke Small Gas Engine Spark Plug Replacement, Spark Plug: step 1, image 1 of 3

4-Stroke Small Gas Engine Spark Plug Replacement, Spark Plug: step 1, image 2 of 3

4-Stroke Small Gas Engine Spark Plug Replacement, Spark Plug: step 1, image 3 of 3

Tug the Spark Plug Cap from the top of the Spark Plug (between the OHV housing and the exhaust manifold) with your hands to remove it.

Edit

Step 2

Make sure the engine is turned off and cool to the touch before completing this step.
Using a ¼ “ socket and Handheld Ratchet, loosen the three screws holding the Exhaust Manifold Heat Shield on.

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Step 3

4-Stroke Small Gas Engine Spark Plug Replacement: step 3, image 3 of 3

Once the Heat Shield is removed, grip the Spark Plug’s threaded diameter with an Adjustable wrench and rotate counterclockwise.
Alternatively, you may use a 5/8" wrench or 5/8" deep socket along with a handheld ratchet.
Remove the Champion RC12YC Spark Plug from the device.