4-14EWhen fitting the plug, always clean the gas-ket surface and use a new gasket. Wipe offany dirt from the threads and screw in thespark plug to the correct torque.NOTE:@If a torque-wrench is not available when youare fitting a spark plug, a good estimate ofthe correct torque is 1/4 to 1/2 a turn pastfinger-tight. Have the spark plug adjusted tothe correct torque as soon as possible with atorque-wrench.@1 Spark plug gap2 Spark plug I.D. mark (NGK)Spark plug torque:Refer to “SPECIFICATIONS”, page 4-1.Initial of spark plugI.D. mark Plug wrench sizeB 21 mm (13/16 in.)C/BK 16 mm (5/8 in.)D 18.3 mm (23/32 in.)
