.030 Champion RJ19LM
Spark Plug gap is .025
.030
0.020 in or 0.50mm
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"
The recommended spark plug gap for a Craftsman snow blower using the RN9YC spark plug is typically 0.030 inches (0.76 mm). It's important to check the owner's manual for your specific model, as some variations may exist. Always ensure the gap is set correctly for optimal engine performance.