Mercury XR2 Manual de instalación descargar pdf (Pagina 5)

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Fuel Delivery System

WARNING

Boating standards (NMMA, ABYC, etc.), federal

standards and U. S. Coast Guard regulations for

INBOARD engines must be adhered to when

installing fuel delivery system. Failure to comply

could result in severe personal injury or death.

CAUTION

Remove plastic plug from fuel inlet fitting. Attach

fuel line to fuel fitting with U.S. Coast Guard

approved hose clamp. Inspect for fuel leaks.

1. Fuel tank should be mounted below carburetor

level (if possible) or gravity feed may cause car-

buretor fuel inlet needles to unseat, and flooding

may result.

2. Fuel pickup should be at least 25 mm (1 in.) from

the bottom of the fuel tank to prevent picking up

impurities.

3. Fuel lines used must be U.S. Coast Guard ap-

proved (USCG type A1), fittings and lines must

not be smaller than 8 mm (5/16 in.) I.D.

4. On installations requiring long lines or numerous

fittings, larger size lines should be used.

5. Fuel line should be installed free of stress and

firmly secured to prevent vibration and/or chafing.

6. Sharp bends in fuel line should be avoided.

7. A flexible fuel line must be used to connect fuel

line to engine fuel pump to absorb deflection

when engine is running.

8. A primer bulb is not necessary with this applica-

tion. If a primer bulb is used, it must be U.S. Coast

Guard approved for inboard engine applications.

Instrumentation

CAUTION

If a fused accessory panel is to be used, it is rec-

ommended that a separate circuit (properly

fused) be used from the battery to the fuse panel

with sufficient wire size to handle the intended

current load.

NOTE: The charging system on these engines is ca-

pable of producing 12 amps maximum charge at

3500 RPM. The electrical load of the boat should not

exceed this capacity.

We recommend the use of Mercury Precision or

Quicksilver Instrumentation and Wiring Harnesses.

Refer to Mercury Precision Parts Accessories Guide

for selection.

If other than Mercury Precision or Quicksilver electri-

cal accessories are to be used, it is good practice to

use waterproof ignition components (ignition switch,

lanyard stop switch, etc.). A typical jet boat of this na-

ture will see water splashed on these components.

Therefore, precautions must be taken to avoid igni-

tion failure due to shorting out of ignition components.

WARNING

Sudden stopping of engine (shorting ignition

components) while boat is underway will cause

loss of steering control due to loss of thrust. This

loss of steering control may cause property dam-

age, personal injury or death.

A warning horn must be incorporated in the wiring

harness (see wiring diagram) to alert the user of an

overheat, low oil condition or oil pump failure.

IMPORTANT: If a warning horn system is not

installed by the boat manufacturer, Mercury

Marine will not honor any warranty claims for

engine damage as a result of overheating or lack

of engine oil.

Route instrumentation wiring harness back to engine,

making sure that harness does not rub or get pinched.

If an extension harness is required, be sure to secure

connection properly. Fasten harnesses to boat at

least every 460 mm (18 in), using appropriate

fasteners.

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