Mercury 25 EFI FourStroke User Manual page 139

SELECTING ACCESSORIES FOR YOUR OUTBOARD
Genuine Mercury Precision or Quicksilver Accessories have
been specifically designed and tested for your outboard. These
accessories are available from Mercury Marine dealers.
IMPORTANT: Check with your dealer before installing
accessories. The misuse of approved accessories or the use of
nonapproved accessories can damage the product.
Some accessories not manufactured or sold by Mercury Marine
are not designed to be safely used with your outboard or
outboard operating system. Acquire and read the installation,
operation and maintenance manuals for all your selected
accessories.
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.
ELECTRIC FUEL PUMP
If an electric fuel pump is used, the fuel pressure must not
exceed 27.58 kPa (4 psi) at the engine. If necessary, install a
pressure regulator to regulate the pressure.
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INSTALLATION
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