2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Repair Manual P/N 5005638, Page 70Get this manual

2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Repair Manual P/N 5005638, Page 70

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MAINTENANCE
Spark plugs should removed and examined periodicallyReplace worn, fouled damaged spark plugs Remove spark plugs and inspect condition Set spak plug gap new, replacement spark plugs A