Pre-Season Check; Motor Submerged In Water - TOHATSU MFS 25B Owner's Manual

60 INSPECTION AND MAINTENANCE

4. Pre-season check

① Check that the shift and throttle
1 function properly.
(Be sure to turn the propeller shaft
when checking the shift function
2
or else the shift linkage may be
damaged.)
3 Notes
The following steps must be taken
when first using the engine after
4
winter storage.
① Fill fuel tank completely.
② Warm up the engine for 3 minutes
5
in the "NEUTRAL" position.
③ Run the engine for 5 minutes at the
slowest speed.
④ Run the engine for 10 minutes at
6
half speed.
In Steps ② and ③ above, the oil
used for storage inside the engine
7
will be flushed out to assure optimum
performance.
② Check the electrolyte level, and
8
measure the voltage and specific
gravity of the battery.
9
Specific
Gravity at 20 °C
10
1.120
1.160
11
1.210
1.250
12
1.280
③ Check that the battery is secure
13
and the battery cables are properly
installed.
14
Terminal Charge
Voltage (V) Condition
Fully
10.5
discharged
11.1 1/4 charged
11.7 1/2 charged
12.0 3/4 charged
13.2 Fully charged

5. Motor submerged in water

After taking your outboard motor out
of the water, immediately take it to
your dealer.
The following are the emergency
m e a s u r e s t o b e t a k e n f o r a
submerged outboard motor, if you
can not take it your dealer right away.
① Wash the outboard motor with fresh
water to remove salt or dirt.
② Remove the engine oil drain screw
and completely drain water and oil
from the engine.
③ Remove the spark plugs, and
completely drain the water from
the engine by pulling the recoil
starter several times.
Replace oil filter and oil to the
correct level.
The oil and filter may need to be
changed again after running a
short period to get all moisture
completely out of the crankcase.
④ Inject a sufficient amount of engine
oil through the spark plug holes.
Pull the recoil starter several times
to circulate the oil throughout the
outboard motor.
CAUTION
!
Do not attempt to start submerged
outboard motor immediately after it is
recovered, or engine could be severely
damaged.