Warming Up Engine; Choke Start Models - Yamaha 15F Owner's Manual

Operation
If the choke knob is left in the pulled out po-
G
sition while the engine is running, the en-
gine will run poorly or stall.
5. Pull the manual starter handle slowly until
you feel resistance. Then give a strong
pull straight out to crank and start the en-
gine. Repeat if necessary.
6. After the engine starts, slowly return the
manual starter handle to its original posi-
tion before releasing it.
7. Slowly return the throttle grip to the fully
closed position.
NOTE:
When the engine is cold, it needs to be
G
warmed up. For further information, see
page 21.
If the engine does not start on the first try,
G
repeat the procedure. If the engine fails to
start after 4 or 5 tries, open the throttle a
small amount (between 1/8 and 1/4) and try
again. Also if the engine is warm and fails to
start, open the throttle a same amount and
try to start the engine again. If the engine
still fails to start, see page 43.
21
EMU27670

Warming up engine

EMU27681

Choke start models

1. After starting the engine, allow it to idle for
3 minutes to warm up. Failure to do so will
shorten engine life. Gradually return the
choke knob to its home position as the
engine warms up.
2. Check for a steady flow of water from the
cooling water pilot hole.
ECM00511
CAUTION:
A continuous flow of water from the cool-
ing water pilot hole shows that the water
pump is pumping water through the cool-
ing passages. If water is not flowing out of
the hole at all times while the engine is
running, overheating and serious damage
could occur. Stop the engine and check
whether the cooling water inlet on the low-
er case or the cooling water pilot hole is
blocked. Consult your Yamaha dealer if
the problem cannot be located and cor-
rected.
ZMU02856