Service HONDA SUBARU A PIC94R-121902R0 PIC156R•121902R0 PIC94-102299R0 PIC93•102299R0 A B B C C PIC95-102299R0 PIC95R-121902R0 D CLEANING AND GAPPING SPARK PLUG 1. Remove and inspect spark plug. If porcelain is cracked or electrodes are pitted, install a new spark plug. PIC99-102299R0 IMPORTANT: DO NOT CLEAN SPARK PLUG IN A MACHINE USING ABRASIVES. 2. If spark plug is in good condition, clean plug by scraping or using a wire brush. Wash with a commercial solvent. 3. Use a round wire-type feeler gauge to check for a gap of 0.70 to 0.80 mm (0.028 to 0.031 inches.) 4. Carefully bend outer electrode to adjust gap. 14 Centrifugal Pump Operator's Manual