Warming Up Engine; Manual Start Models; Shifting - Yamaha F4 Owner's Manual

Operation
NOTE:
When the engine is cold, it needs to be
G
warmed up. For further information, see
page 25.
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, see page 50. Also, if
the engine is warm and fails to start, open
the throttle halfway and try to start the en-
gine again.
EMU27670

Warming up engine

EMU27732

Manual start models

1. After starting the engine, return the
choke knob to the halfway position. For
approximately the first 5 minutes after
starting, warm up the engine by operat-
ing at one fifth throttle or less. After the
engine has warmed up, push the choke
knob in fully. Failure to do so will shorten
engine life.
NOTE:
If the choke knob is left pulled out after the
G
engine starts, the engine will stall.
In temperatures of -5°C or less, leave the
G
choke knob pulled out fully for approxi-
mately 30 seconds after starting.
2. Check for a steady flow of water from the
25
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 dam-
ZMU02685
age could occur. Stop the engine and
check whether 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 corrected.
EMU27740
EWM00180
WARNING
Before shifting, make sure there are no
swimmers or obstacles in the water near
you.
ECM00220
CAUTION:
To change the boat direction or shifting
position from forward to reverse or vice-
versa, first close the throttle so that the
engine idles (or runs at low speeds).
ZMU02686

Shifting