Checks After Starting Engine; Cooling Water; Warming Up Engine; Manual Start And Electric Start Models - Yamaha F20B Owner's Manual

Operation
5. Immediately after the engine starts, re-
lease the main switch and allow it to re-
turn to " " (on). NOTICE: Never turn
the main switch to "
while the engine is running. Do not
keep the starter motor turning for
more than 5 seconds. If the starter
motor is turned continuously for
more than 5 seconds, the battery will
be quickly discharged, thus making it
impossible to start the engine. The
starter can also be damaged. If the
engine will not start after 5 seconds
of cranking, return the main switch to
" " (on), wait 10 seconds, then
crank the engine again.
TIP:
When the engine is cold, it needs to be
G
warmed up. For further information, see
page 44.
If the engine is warm and fails to start,
G
open the throttle slightly and try to start the
engine again. If the engine still fails to
start, see page 77.
EMU36510

Checks after starting engine

EMU36520

Cooling water

Check for a steady flow of water from the
cooling water pilot hole. A continuous flow of
water from the pilot hole shows that the wa-
44
ter pump is pumping water through the cool-
ing passages. If the cooling passages are
frozen, it may take a while for water to start
flowing out of the pilot hole.
ECM01810
NOTICE
If water is not flowing out of the pilot hole
at all times while the engine is running,
overheating and serious damage could
occur. Stop the engine and check wheth-
er the cooling water inlet on the lower
case or the cooling water pilot hole is
blocked. Consult your Yamaha dealer if
the problem cannot be located and cor-
" (start)
rected.
[ECM00192]
Check that no water leaks from the joints be-
tween the exhaust cover, cylinder head, and
body cylinder.
EMU27670
EMU27715
Manual start and electric start
models
1.
2.

Warming up engine

After starting the engine, allow it to idle
for 3 minutes to warm up. Failure to do
so will shorten engine life.
Be sure the low oil pressure-alert indica-
tor goes off after starting the engine.
NOTICE: If the low oil pressure-alert
indicator blinks after the engine
starts, stop the engine. Otherwise se-