Checks After Starting Engine; Cooling Water; Warming Up Engine; Warming Up - Yamaha F2.5 Owner's Manual

6. After the engine starts, slowly return the
manual starter handle to its original posi-
tion before releasing it.
7. Warm up the engine. For further informa-
tion, see page 57.
8. Return the choke knob to its original posi-
tion gradually.
9. Slowly return the throttle grip to the fully
closed position.
EMU36510

Checks after starting engine

EMU36523

Cooling water

Check for a steady flow of water from the cool-
ing water pilot hole. A continuous flow of water
from the pilot hole indicates that the water
pump is pumping water through the cooling
water passages. If the cooling water passag-
es 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 whether
the cooling water inlet on the lower case or
the cooling water pilot hole is blocked.
Consult your Yamaha dealer if the prob-
ZMU06746
lem cannot be located and corrected.
F2.5
1. Cooling water pilot hole
F4, F6
1
ZMU06818
1. Cooling water pilot hole
EMU27670
EMU40070

Warming up

After starting the engine, return the choke
knob to the halfway position. For approxi-
mately the first 5 minutes after starting, warm
up the engine by operating at one fifth throttle
Operation

Warming up engine

1
ZMU07371
ZMU06747
57