here is a video I did of how to change the spark plugs and the air filter on the yard machine lawn mower. It is very easy to change. Just make sure when you're putting your spark plug back in your lawnmower that the engine is cold never hot. this spark plug I put in is about two years old, I mean the spark plug that I was replacing was about two years old. This year I also changed the oil and cleaned the carburetor on this Yard machine lawnmower which has a Briggs and Stratton 4.5 hp motor.

Thanks for watching,

www.trev2323.com



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