Checking the thermostat
1.
Remove the thermostat. Refer to
“Thermostat” in chapter 5.
2.
Suspend the thermostat in a container of
water.
3.
Place a thermometer in the water and
slowly heat the water.
4.
Check the thermostat valve opening at
the specified water temperatures.
Replace if out of specification.
5.
Install the thermostat, new gasket, and
thermostat cover.
CHK
ADJ
3-7
6D45F11
Periodic checks and adjustments
Checking the cooling water
passages
1.
Check the cooling water inlet covers
1
and cooling water inlet for clogging.
Clean if necessary.
2.
Place the lower unit in water, then start
the engine.
3.
Check for water flow at the cooling water
pilot hole. If there is no water flow, check
the cooling water passages.
Control system
Checking the start-in-gear
protection
c
C
Be sure to remove the engine stop lanyard
switch clip before checking the start-in-
gear protection.
1.
Set the shift lever and or remote control
lever in the forward or reverse position,
then pull the starter handle.
2.
Check the operation of the start-in-gear
protection cable. If the starter rope can
be pulled out normally, adjust the start-in-
gear protection cable.
Water temperature
Valve lift
a
below 58.0–62.0°C
(136.40–143.60°F)
0 mm (0 in)
above
more than
70.0°C (158.00°F)
3.0 mm (0.12 in)
6D430200
1
1
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