Evinrude 4906B 4HP 1969, Owner'S Manual

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10-9 BATTERY STORAGE
Remove the batteries from the boat and
keep them charged during the storage peri-
od. Clean the batteries thoroughly of any
dirt or corrosion, and then charge them to
full specific gravity reading. After they are
fully charged, store them in a clean cool dry
place where they will not be damaged or
knocked over.
NEVER store the battery with anything
on top of it or cover the battery in such a
manner as to prevent air from circulating
around the filler caps. All batteries, both
new and old, will discharge during periods of
storage, more so if they are hot than if they
remain cool. Therefore, the electrolyte
level and the specific gravity should be
checked at regular intervals. A drop in the
specific gravity reading is cause to charge
them back to a full reading.
In cold climates,
EXERCISE CARE
in
selecting the battery storage area. A fully-
charged battery will freeze at about 60
A check of the electrolyte in the battery should be
on the maintenance schedule for any boat. A
hy,drometer reading of 1.300 or in the green band,
indicates the battery is in satisfactory condition. If the
reading is 1.150
or
in the red band, the battery needs
to
be charged. Observe the six safety points given in the
text, when using a hydrometer.
PRE-SEASON PREPARATION
10-13
Today, numerous type spark plugs are available {or
service. ALWAYS check with the local OMC dealer to
be sure you
are
purchasing the proper plugs for the
engine being serviced.
degrees below zero. A discharged battery,
almost dead, will have ice forming at about
19 degrees above zero.
10-10 PRESEASON PREPARATION
Satisfactory performance and maximum
enjoyment can be realized if a little time is
spent in preparing the engine for service at
the beginning of the season. Assuming the
unit has been properly stored, as outlined in
Section 10-6, a minimum amount of work is
required to prepare the engine for use.
The following steps outline an adequate
and logical sequence of tasks to be perform-
ed before using the engine the first time in
a new season.
1- Lubricate the engine according to the
manufacturer's recommendations. Remove,
clean, inspect, adjust, and install the spark
Correct and incorrect spark plug installation. The
plugs MUST be installed properly and tightened to the
proper torque value for satisfactory performance.