Lawn Mowers Changing the Spark Plug on Husqvarna Lawn Mower

Published on March 10th, 2015 | by Turner Anderson

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Changing the Spark Plug on a Husqvarna Lawn Mower

Watch our video about how to replace the spark plug on a Husqvarna lawn mower.

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.

Recommended Tools: Spark Plug Wrench or Socket Wrench

Step 1:

Remove the spark plug boot

Step 2:

Use the socket wrench to unscrew the spark plug, you may want to loosen it with the wrench and then use your fingers to finish unscrewing it

Step 3:

Refer to your owners manual for the correct gap of your new spark plug and be sure it is correct

Step 4:

Thread the new plug into the cylinder and then tighten with the wrench

Step 5:

Connect the boot back on to the spark plug

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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About the Author

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.





7 Responses to Changing the Spark Plug on a Husqvarna Lawn Mower

  1. Bre Wright says:

    I have searched high and low for videos and asked at the store where I purchased my Husqvarna riding mower as to how to replace a spark plug on the YTH21K46 model. Can you help a lady out who is not afraid of a little manual labor when she can find the information. There is no example in the user’s manual either.

    Thanks in advance

  2. Denise Rhone says:

    what size wrench do i need to use to change the sparkplug #130526? Denise

  3. Bob R. Oliver says:

    We need to know where and how to change a spark plug on a Husqvarna Riding Lawn mower #968999245 /CZ3815.

  4. Ed says:

    l have a ride on Lawn mower , PLEASE tell me where to locate / find the spark plug as l have been through your munual on the ride on mower & it fails to tell you where the spark plug is located .

  5. Lindsay says:

    After much looking around I found the spark plug in the front of the engine kind of near the bottom, left hand side as I face it. I have a husqvarna too, and am so annoyed that the manual doesn’t tell where it is! I didn’t even know what they looked like! Took me forever, and I was glad I could park the tractor close enough to the house to use the wifi to help me.

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