2003 Johnson ST 6/8 HP 4 Stroke Outboards Service Manual, PN 5005471, Page 45Get this manual
MAINTENANCE SAFETY INFORMATION
SAFETY INFORMATION
Before working on any part of the outboard, first read the SAFETY section at the end of this manual
ANTICORROSION PROTECTION
Sacrificial Anodes
Galvanic corrosion occurs in fresh or salt waterSalt, brackish, and polluted water can accelerate corrosion"Sacrificial" anodes are intended to protect the underwater metal components of the outboard from galvanic corrosion The outboards are equipped with anodessacrificial
WARNING
Prevent injury from contact with rotating propeller; remove propeller before servicing and when running the outboard on flusherTo prevent accidental starting while servicing, always shift the outboard to NEUTRAL position, and twist and remove all spark plug leads so the engine cannot be started accidentallyDisconnect battery cables at battery on electric start models to prevent accidental starter engagementRemove the battery negative (-) cable first and the battery positive (+) cable lastThe motor cover is machinery guardUse caution when conducting tests on running outboardsDO NOT wear jewelry or loose clothingKeep hair, hands, and clothing away from rotating partsWear safety glasses to avoid personal injury, and set compressed air to less than 25 psi (172 kPa)Gasoline is extremely flammable and highly explosive under certain conditionsUse caution when working on any part of the fuel systemProtect against hazardous fuel sprayBefore starting any fuel system repair, carefully relieve fuel system pressureFailure to check for fuel leakage could allow leak to go undetected, resulting in fire or explosion