Champion RCJ7Y
.025
.025" spark plug gap http://store.chainsawr.com/
yes
Spark plug gap should be .025 http://store.chainsawr.com/
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.
0.020
Depending on the model there should be a cover above the throttle handle. The spark plug should be under that cover.
Plug gap should be .025" http://store.chainsawr.com/
plug gap should be .025" http://store.chainsawr.com/
ngk bpmr7a
Plug gap should be .025" http://store.chainsawr.com/
all the spark plug wires go to the distributor.