Battery Installation - Electric Start Models; Battery Connections - Mercury 10 TwoStroke Operation, Maintenance & Installation Manual

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3. Fasten outboard by drilling two 7.9 mm (5/16 in.) holes through the
transom using transom clamp holes as a template. Fasten with two bolts,
flat washers and locknuts. The use of clamp handles alone is insufficient
to properly and safely secure the outboard to the transom. Use a marine
waterproofing sealer in holes and around bolts to make the installation
water tight.
a
Battery Installation ‑ Electric Start Models
MOUNTING BATTERY
Follow the battery manufacturer's instructions carefully. Mount battery in the
boat so it is secured against movement, preferably in a battery box. Make sure
battery is equipped with a nonconductive shield to prevent accidental shorting
of battery terminals.
NOTE: Electric starting outboards must have the battery cables connected to a
battery whenever the engine is running, even if started manually, as damage to
the charging system could result.

Battery Connections

CONNECTING OUTBOARD BATTERY CABLES
1. First, connect the red battery cable to the (+) positive battery terminal and
then connect the black battery cable to the (‑) negative battery terminal.
DISCONNECTING OUTBOARD BATTERY CABLES
1. First, disconnect the black battery cable from the (‑) negative terminal and
then disconnect the red battery cable from the (+) positive terminal.
eng
INSTALLATION
a -
Bolts (2)
b -
Flat washer (2)
c -
Locknut (2)
c
b
3019
75
27158

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