Don't know much about lawnmowers but I work on cars. So either ur threads in the head are stripped and/or ur exhaust system is clogged, making the pressure come out of the weakest area which in your case is the spark plug hole
You may do serious damage to the lawnmower if the wrong spark plug is installed.
yes
Rj19l
yes
Depending on what lawnmower you have just simply take the spark plug out and tilt lawnmoer
Honda 215 lawnmower
Chanpion RJ19LM
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.
Remove the spark plug wire from the spark plug and make sure it will not touch the spark plug. Or, you can remove the spark plug, but be sure and cover the hole so no debris will fall into the cylinder.
.030"
Buy a new one - replace it!!