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30). 4. Remove spark plug with spark plug socket wrench. DO NOT USE ANY OTHER TOOL. Do not sand blast, WARNING: scrape or clean electrodes. Grit in the engine could damage the cylinder. 5. Check electtrode gaps with wire feeler gauge and set gaps to .025” (.635mm) if necessary. 6. Reinstall a new spark plug. NOTE: A resistor spark plug must be used for replacement (part no. 9295-310502). NOTE: This spark ignition system meets all requirements of the Canadian Interferen-Causing Equipment Regulati