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Mercury FourStroke 3.5 User Manual

Mercury FourStroke 3.5
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Ignition
Page 2A-6 90-8M0065421 NOVEMBER 2012
Ignition System Description
A single digital capacitor discharge ignition (CDI) coil is utilized on this model. Major components of this system are the
flywheel, ignition coil, and the spark plug. A stop switch is provided which shorts the ignition coil to ground preventing spark.
Flywheel Removal and Installation
Removal
!
WARNING
An unexpected engine start due to rotation of the flywheel may cause serious injury. During removal, installation, or
adjustment of the flywheel, always remove the spark plug leads and isolate the leads to the engine ground.
1. Disconnect the spark plug lead from the spark plug.
2.
Remove the fuel tank and recoil starter. Refer to Section 8A Recoil Starter.
IMPORTANT: Use an approved container to collect and store the fuel. Wipe up any spillage immediately. Materials used to
contain spillage must be disposed of in an approved receptacle. Any fuel system service must be performed in a
well‑ventilated area.
3. Remove the flywheel cover.
4. Use the flywheel holder to secure the flywheel. Remove the flywheel nut.
a - Flywheel
b - Cover
c - Flywheel nut
Flywheel Holder 91‑83163M
5. Attach the flywheel puller to the flywheel with three M6 x 60 bolts. Tighten the bolts to the specified torque.
6. Tighten the flywheel puller center screw until the flywheel is loose.
7. Remove the flywheel.
a - Center screw
b - Flywheel puller
c - Bolts (M6 x 60) (3)
d - Flywheel holder
49994
a
b
c
49995
a
b
c
d

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Mercury FourStroke 3.5 Specifications

General IconGeneral
BrandMercury
ModelFourStroke 3.5
CategoryOutboard Motor
LanguageEnglish

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