Fuel Fill & Vent; Anti-Siphon Valve (Gas Engine Only) - Maxum 1800MX Owner's Manual

FUEL TANK
FUEL FILTER
Fuel Fill & Vent
• The fuel fill/vent fitting is marked "Gas" or "Diesel".
• If you have problems filling the fuel tank, see if the fuel fill hose or fuel tank vent hose is kinked or collapsed.
• If there are no visible signs of a problem, contact your local dealer.

Anti-siphon Valve (Gas Engine Only)

• 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 engine is shut down.
• NEVER run the engine with the anti-siphon valve removed, except in an emergency.
• The anti-siphon valve is a vital fuel system part.
• If the fuel line ruptures, this valve will prevent the fuel from siphoning from the tank.
• The valve is located on the fuel tank, where the fuel feed line attaches to the tank.
• The valve is spring loaded and is opened by fuel pump vacuum.
DIESEL ENGINE FUEL LINE ROUTING (1900SR ONLY) (IF EQUIPPED)
FUEL SHUT-OFF
VALVE
NOTICE
Chapter 4: Propulsion & Related Systems
FUEL TANK VENTED FUEL FILL
VENT HOSE DECK FITTING
FUEL FEED
LINE
FUEL RETURN
LINE
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