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foyman

lawn mower spark plugs

foyman
14 years ago

I need to replace the spark plug in my lawn mower (3.5 hp Briggs and Stratton motor). The original plug is a Champion RJ19LM. I have a Champion RJ17LM that I figure would be a suitable replacement although it has a little lower heat rating. If the 17 is not suitable and I buy one I like the sound of the Champion EZ START which I understand to be a great replacement plug for all small motors. Any differences or am I splitting hairs?

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