.030 Champion RJ19LM
Spark Plug gap is .025
0.020 in or 0.50mm
.030
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
Spray some ether in the carb. If it fires, it has spark, but not getting fuel. start there.
.030"
0.030"
.030"
Rj19l