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Mercury 140 Service Manual

Mercury 140
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MAINTENANCE
46
2
0
2
0
5
2
0
a
b
c
d
e
f
3395
a - Good fuse
b - Blown fuse
c - SmartCraft data bus circuit - 5 AMP fuse
d - Accessories - 20 AMP fuse
e - Ignition coil circuit - 20 AMP fuse
f - Electric fuel pump/ECM driver power/oil pump circuit - 20 AMP fuse
Corrosion Control Anode
Your outboard has corrosion control anodes at different locations. An anode helps protect the outboard against
galvanic corrosion by sacrificing its metal to be slowly eroded instead of the outboard metals.
Each anode requires periodic inspection, especially in salt water which will accelerate the erosion. To maintain
this corrosion protection, always replace the anode before it is completely eroded. Never paint or apply a protective
coating on the anode as this will reduce effectiveness of the anode.
The gearcase has two corrosion control anodes, one on each side. A third anode is installed on the bottom of the
transom bracket assembly.
339533953395
a
b
3398
a - Anode (2) on each side of gearcase
b - Anode on transom bracket assembly
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.

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Mercury 140 Specifications

General IconGeneral
BrandMercury
Model140
CategoryBoat
LanguageEnglish

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