Generators Change Generac Generator Spark Plug

Published on February 27th, 2015 | by Turner Anderson


Changing the Spark Plug on a Generac Portable Generator

Watch our video on how to replace the spark plug on a Generac portable generator.

Changing your spark plug will increase the efficiency and extend the life of your engine. This video shows you how to easily replace your dirty spark plug with a new one.

Step 1:

Make sure the power switch is off and all of the cords are unplugged

Step 2:

Remove the spark plug boot and then remove the spark plug using a socket wrench

Step 3:

Thread the new spark plug into the spark plug housing by hand, and then tighten with the socket wrench, be sure not to over tighten

Step 4:

Replace the spark plug boot

Jack’s Safety Tips: Before servicing or repairing any power equipment, disconnect the spark plug and battery cables. Remember to wear appropriate safety glasses and gloves to protect against harmful chemicals and debris. View our Disclaimer.

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is the Internet Marketing Manager at Jack's and the editor of Jack's DIY Center. You'll also find him creating How-To articles, videos, newsletters, and much more.

2 Responses to Changing the Spark Plug on a Generac Portable Generator

  1. Ted Gill says:

    Anybody have any experience changing the plug on a Generac 6500 EXL; first time I did it took about an hour an a half due to all the stuff that had to be removed to get to the plug.

  2. Linda Emerick says:

    What size spark plug wrench do I need? The socket wrench spark plug drive I have does not fit and regular socket wrenches are too short.

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