Owner's Manual DF300 Inspection And Maintenance[Lubrication]
Drain the fuel and water in the filter cup into a suitable container.
Pull out the filter element 5. Inspect the filter element 5, O-ring 6 and seal ring 7 for damage. If they are damaged, replace them.
Wash the filter element with clean solvent and dry it.
Reinstall the seal ring and filter element in their original positions.
Verify that the O-ring is in place in the top of the filter cup and screw the filter cup back into place.
Connect the water sensor lead wire connector (3).
Reinstall the fuel filter with the attaching bolts.
Restart the engine and check that there are no leaks around the fuel filter.
If any water exists in the fuel filter cup, remove the cup and drain the water. Always dispose of excess fuel safely. For questions, consult your authorized Suzuki marine dealer.
LUBRICATION
Proper lubrication is important for the safe, smooth operation and long life of each working part of your outboard motor. The following chart shows the lubrication points of your motor and the recommended lubricant:
Your authorized Suzuki Marine Dealer may also have additional recommendations due to regional climate or operating conditions. Please consult him for advice.
CORROSION PREVENTION
ANODES
The motor is protected from exterior corrosion by anodes. These anodes control electrolysis and help prevent corrosion. The anodes will corrode in place of the parts they are protecting. You should periodically inspect each of the anodes and replace them when 2/3 of the metal has corroded away.
In certain areas of the country, the water is unusually harsh on metal. Additional anti-corrosion measures may be helpful under those conditions. Consult your authorized Suzuki Marine Dealer for details.
If anodes are not properly maintained, underwater aluminum surfaces (such as the lower unit) will suffer galvanic corrosion damage.
• Periodically inspect anodes to make sure they have not become detached.
• Do not paint anodes, as this will render them ineffective.
• Periodically clean anodes with a wire brush to remove any coating which might decrease their protective ability.
BONDING WIRES
Bonding wires are used to electrically connect the engine components so they exist in a common ground circuit. This allows them to be protected against electrolysis by the anodes. These wires and their terminals should be checked periodically to be sure they have not been damaged.
