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Mercury 4-STROKE User Manual

Mercury 4-STROKE
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Fuel System
!
WARNING
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 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.
FUEL LINE FILTER
Inspect the fuel line filter. If the filter appears to be contaminated, remove and
replace.
58658
IMPORTANT: Inspect for fuel leakage from the filter connections by squeezing
the primer bulb until firm, forcing fuel into the filter.
Steering Link Rod Fasteners
IMPORTANT: The steering link rod that connects the steering cable to the
engine must be fastened using the steering link rod fastening hardware
supplied with engine. Never replace the locknuts (11‑16147‑‑3) with common
nuts (non‑locking) as they will work loose and vibrate off, freeing the link rod to
disengage.
MAINTENANCE
eng 83

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Mercury 4-STROKE Specifications

General IconGeneral
Engine Type4-Stroke
Fuel TypeGasoline
Cooling SystemWater-cooled
Ignition SystemCDI (Capacitor Discharge Ignition)
StartingManual / Electric
Shaft Length15", 20", 25"
Max PowerVaries by model
Full Throttle RPM RangeVaries by model
Fuel Induction SystemEFI / Carbureted
SteeringRemote / Tiller
WeightVaries by model
Fuel Tank CapacityVaries by model, some models include external tank
Oil CapacityVaries by model

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