2004 SR Johnson 2 Stroke 9.9, 15, 25, 30 HP Outboards Service Manual, Page 70Get this manual
MAINTENANCE FUEL SYSTEM
FUEL SYSTEM
Visual inspection of fuel system components reduces the possibility of undetected fuel system leaksInspect fuel system components regularly
Hoses and Connections
Check condition of all hoses and connections related to the fuel system Visually inspect all components Observe all clamps, hoses, and connections while outboard is running Replace all damaged components Repair all leaks
WARNING
Failure to check for fuel leakage could allow leak to go undetected, resulting in fire or explosion
SPARK PLUGS
Spark plugs should be removed and examined periodicallyReplace worn, fouled or damaged spark plugs Remove spark plugs and inspect condition Set spark plug gap on new, replacement spark plugs Apply Electrical Grease to the ribbed portion of the spark plug ceramic and to the opening of the spark plug cover to prevent corrosionSee table below for recommended spark plug data and gap settingModels Recommended Spark Plug