mine takes a Champion RJ19LM. now if I could find out the proper gap ...
Chanpion RJ19LM
You may do serious damage to the lawnmower if the wrong spark plug is installed.
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.025
Champion RCJ7Y
Rj19l
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Depending on what lawnmower you have just simply take the spark plug out and tilt lawnmoer
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Honda 215 lawnmower
Spark plug gap for 802592S PLUG IS 0.030 INCH
The spark-plug gap for a toro 6.5 hp self paced walk behind lawnmower is a 0.035 spark plug. You can easily find nice spark-plugs for sale on sites such as eBay.