Fuel Fill And Vent; Fuel Filters; Anti-Siphon Valve - Maxum 3100 SCR Owner's Manual

Fuel Fill and Vent

• The fuel fill fitting is marked "GAS" or "DIESEL".
• The fuel tank vent is located below the fuel fill.
• If you experience difficulty filling the fuel tank, check to see that the fuel fill hose and vent hose are free of
obstructions and kinks.

Fuel Filters

• The fuel pickup tube (located inside the fuel tank) is equipped with a fine mesh screen filter.
• In addition, when supplied by the engine manufacturer, a fuel filter is installed on the engines.
• Periodically replace the fuel filters to make sure they remain clean and free of debris.
• Consult with your selling dealer or local marina concerning fuel additives that help to prevent fungus or other
buildup in your fuel tank.

Anti-siphon Valve

• If an engine running problem is diagnosed as fuel starvation, check the anti-siphon valve. If
the valve is stuck or clogged, change or replace it while the engines are shut down.
• NEVER run the engines with the anti-siphon valve removed, except in an emergency.
• Your boat is equipped with an anti-siphon valve, which is an integral part of fuel system.
• The valve is located at the point where the fuel feed line attaches to the fuel tank.
• The valve is spring loaded and is opened by fuel pump vacuum.
• This valve will prevent fuel from siphoning from the tank in the event of a fuel line rupture.
CHAPTER 3: PROPULSION & RELATED SYSTEMS
NOTICE
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