ngk bpmr7a
0.020
The correct spark plug for a Stihl 024 is an RCJ6Y (Champion), BPMR7A (NGK), or a WSR6F (Bosch). Make sure that the gap is set to 0.020 inches.
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/
Spark plug gap is .020 [or 0.5mm metric] Bosch plug numbers are 7547 and WSR6F [either can be used] Can be converted to Champion or NGK, etc. with an online conversion chart. T'care, Mike
The spark plug for a Stihl FS36 is a Bosch WSR6F gapped at .025
11/16inch or 18mm socket.
.020
0.020"
If it has contact breakers and a condensor, check that the contact foot that rides the timing cam, is not worn down. Check the contact gap and the contact faces for pits and spikes. The faces should be flat, clean and smooth. The gap should be as per the owners handbook/ motor spec plate. Check for spark at HT lead plug cap before checking plug for spark.
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.
correct plug is NGK BPMR7A