Mine has a cj8 in it, not 100% sure that og part though or what someone just put in it. works fine with it
Spark Plug gap is .025
.030
0.020 in or 0.50mm
.030 Champion RJ19LM
Champion RDJ7Y is the correct number.
.030
My 16" Craftsman 36 cc chainsaw manual calls out for a Champion RCJ7Y....if that is the same size chainsaw as yours, I would go with that plug.
Mine has original plug, it is a: Champion # CJ8Y
For Mantis tillers, the recommended NGK spark plugs typically include the NGK BPMR7A and NGK BR6HS models. However, it's essential to check the specific model of your tiller, as some may require different spark plug types. Always refer to the owner's manual for the most accurate information regarding compatible spark plugs.
Spray some ether in the carb. If it fires, it has spark, but not getting fuel. start there.
0.024 - 0.028"
.030"