Fuel Tanks; Low Permeation Fuel Hose Requirement; Filling The Fuel System - Mercury 225 Manual

Some accessories not manufactured or sold by Mercury Marine
are not designed to be safely used with this outboard or outboard
operating system. Acquire and read the installation, operation,
and maintenance manuals for all selected accessories.

Fuel Tanks

PORTABLE FUEL TANK
Select a suitable location in the boat within the engine fuel line
length limitations and secure the tank in place.
PERMANENT FUEL TANK
Permanent fuel tanks should be installed in accordance with
industry and federal safety standards, which include
recommendations applicable to grounding, anti‑siphon
protection, ventilation, etc.

Low Permeation Fuel Hose Requirement

Required for outboards manufactured for sale, sold, or offered
for sale in the United States.
• The Environmental Protection Agency (EPA) requires that
any outboard manufactured after January 1, 2009 must use
low permeation fuel hose for the primary fuel hose
connecting the fuel tank to the outboard.
• Low permeation hose is USCG Type B1‑15 or Type A1‑15,
defined as not exceeding 15/gm²/24 h with CE 10 fuel at
23 °C as specified in SAE J 1527 ‑ marine fuel hose.

Filling the Fuel System

NOTE: For initial start of a new engine, or for an engine that ran
out of fuel or was drained of fuel, the fuel system should be filled
as follows:
Turn the ignition key switch to the "ON" position for
approximately one minute. This operates the fuel lift pump. Turn
the ignition key switch back to the "OFF" position and then return
the ignition key switch to the "ON" position again for an
additional minute. Turn the ignition key switch back to the "OFF"
position. The filling of the fuel system is complete.
OUTBOARD INSTALLATION
108
eng