Regal 3300 Owner's Manual page 118

CHAPTER 4
Fuel Hoses
Fuel hoses transport gasoline from one component to another. These
hoses are required to be of certain diameters in order to comply with
engineering and environmental standards. Hoses showing signs of
cracking or abrasion must be replaced immediately. Hose clamps are
often used to seal the hose to a fitting, and these connections should
be checked regularly.
Anti-Siphon Valve
The fuel tank feed line uses an anti-siphon valve. The valve is threaded
into the fuel tank fitting at the feed line. The valve is pulled off its seat
by fuel pump pressure as the engine is cranking or running. It allows
a one-way fuel roadway to the engine fuel pump. It prevents fuel
from siphoning out of the tank in the event of a fuel line rupture or
disconnected fuel feed hose. Never remove an anti-siphon valve as it
is a fuel system safety component. Clean or replace a clogged or stuck
anti-siphon valve. Contact your closest Regal dealer or certified marine
technician for more information.
Fuel Gauge and Sender
The dash fuel gauge is only an indication of the onboard fuel supply.
They are not exact reading instruments. Therefore, use the one-third
rule presented earlier for monitoring your fuel supply. There are not many
filling stations on the open waterways! The gas sender located in the fuel tank
uses a float system, which sends a signal regarding the fuel tank level
to the dash fuel gauge.
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