SELVA MARINE Blue Whale 250 EFI, Service Manual

Page: 74 / 377

CHK
ADJ
Periodic check and adjustment
3-9
6P23H11
9. Check the thermostat valve opening at
the specified water temperatures.
Replace if out of specification.
10. Install the thermostats and covers.
NOTE:
It is recommended to check the thermostat
cover anodes before installing the thermostat
covers.
11. Connect the thermoswitch connectors,
quick connectors, and oil control valve
couplers.
12. Route and fasten the wiring harness in its
original position.
13. Install the flywheel magnet cover.
Checking the cooling water passage
1. Check the cooling water inlet covers
1
and cooling water inlet. Clean if clogged.
2. Place the lower unit in water, and 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 passage inside the out-
board motor.
Control system
3
Checking the engine idle speed
1. Start the engine and warm it up for 5 min-
utes.
2. Check the engine idle speed using the
Selva genuine tachometer (on-board
meter) or using the YDIS.
NOTE:
To connect and operate the YDIS, see Chap-
ter 9,
“ YDIS ” and the YDIS (version 1.23a or
later) Instruction Manual.
Water
temperature
Valve lift
a
58 – 62 ° C
(136 – 144 ° F)
0.05 mm
(0.0020 in)
(valve begins to lift)
above
70 ° C (158 ° F)
more than
4.3 mm (0.17 in)
S6P23150
1
1
S6P21050