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Mercury 2.5 Service Manual

Mercury 2.5
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OPERATION
25
!
WARNING
Direct Drive Models (non-gear shift) - Outboard is in gear at all times. Do not start the engine with the throttle
lever past the start position. Always remain seated when attempting to start the engine. Sudden acceleration
could cause loss of balance by occupants resulting in serious injury or death.
8. Always remain seated when attempting to start the engine. Pull the starter rope slowly until the starter
engages, then pull rapidly to crank the engine. Allow rope to return slowly. Repeat until engine starts.
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NOTE: Starting flooded engine - Move the choke lever down to the open position. Wait 30 seconds, keep the
throttle lever at the start position, then continue to crank engine for starting.
9. After engine starts, check for a steady stream of water flowing out of the water pump indicator hole.
IMPORTANT: If no water is coming out of the water pump indicator hole, stop engine and check cooling water
intake for obstruction. No obstruction may indicate a water pump failure or blockage in the cooling system. These
conditions will cause the engine to overheat. Have the outboard checked by your dealer. Operating the engine
while overheated will cause engine damage.
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Gear Shifting - Models with Gear Shift
The outboard has two gear shift positions to provide operation: forward and neutral.
Reduce throttle speed to idle speed.
Always shift outboard into gear with a quick motion.
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Stopping The Engine
Reduce engine speed and push in the stop switch or pull the lanyard.

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Mercury 2.5 Specifications

General IconGeneral
Fuel Induction SystemCarburetor
IgnitionCDI
StartingManual
SteeringTiller
Cylinders1
Recommended Fuel87 Octane
Shaft Length15 in (381 mm)
Horsepower2.5 HP
Gear ShiftForward, Neutral

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