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.
Spark plug gap should be .025 http://store.chainsawr.com/
Spark Plug gap is .025
Depending on the model there should be a cover above the throttle handle. The spark plug should be under that cover.
0.020 in or 0.50mm
.030
Plug gap should be .025" http://store.chainsawr.com/
Champion RDJ7Y is the correct number.
Mine has original plug, it is a: Champion # CJ8Y
This is one of the dumbest questions i have ever heard of. If you are not sure if your GAS chainsaw has a spark plug i would highly suggest not using it because you are an idiot
.030
My 18" Sears/craftsman chainsaw manual says the spark plug hould be a champion CJ-8 with a gap of .025 inches My 18" Sears/craftsman chainsaw manual says the spark plug hould be a champion CJ-8 with a gap of .025 inches. Oh - and if it matters, the info here is from my 25 year old chain saw.
.030"