Spark Plug

Type			SILKFR8A6
Manufacturer			NGK
Thread size (diameter, pitch, length)	mm		12.0, 1.25, 26.5
Spark plug gap	mm (in)	Standard	0.5 - 0.6 (0.020 - 0.024)
Electrode	Center electrode		Iridium
	Ground electrode		Platinum