Battery Inspection; Fuel System - Mercury 40 jet fourstroke User Manual

Battery Inspection

The battery should be inspected at periodic intervals to ensure
proper engine starting capability.
IMPORTANT: Read the safety and maintenance instructions
which accompany your battery.
1. Turn off the engine before servicing the battery.
2. Ensure the battery is secure against movement.
3. Battery cable terminals should be clean, tight, and correctly
installed. Positive to positive and negative to negative.
4. Ensure the battery is equipped with a nonconductive shield
to prevent accidental shorting of battery terminals.

Fuel System

Fuel is flammable and explosive. Ensure that the key switch is
off and the lanyard is positioned so that the engine cannot
start. Do not smoke or allow sources of spark or open flame in
the area while servicing. Keep the work area well ventilated
and avoid prolonged exposure to vapors. Always check for
leaks before attempting to start the engine, and wipe up any
spilled fuel immediately.
Before servicing any part of the fuel system, stop the engine and
disconnect the battery. Drain the fuel system completely. Use an
approved container to collect and store the fuel. Wipe up any
spillage immediately. Material used to contain spillage must be
disposed of in an approved receptacle. Any fuel system service
must be performed in a well‑ventilated area. Inspect any
completed service work for sign of fuel leakage.
FUEL LINE INSPECTION
Visually inspect the fuel line and primer bulb for cracks, swelling,
leaks, hardness, or other signs of deterioration or damage. If any
of these conditions are found, the fuel line or primer bulb must be
replaced.
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MAINTENANCE
WARNING
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