warning YAMAHA YFM400F 2001 Repair Manual

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3. Unhook the bulb holder spring and re-
move the defective bulb.
WARNING
The headlight bulb is hot when it is on and im-
mediately after it is turned off. Wait for the
bulb to cool down before touching or remov-
ing it. You can be burned, or a fire could start ifthe bulb touches something flammable.
4. Put a new bulb into position and secure it
in place with the bulb holder spring.
5. Install the bulb holder cover.
1. Bulb holder
1. Fixation d’ampoule
1. Portabombillas

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Troubleshooting
Although Yamaha machines receive a rigid in-
spection before shipment from the factory,
trouble may occur during operation.
Any problem in the fuel, compression, or igni-
tion systems can cause poor starting and loss
of power. The troubleshooting chart describes
a quick, easy procedure for making checks. If
your machine requires any repair, take it to a
Yamaha dealer.
The skilled technicians at a Yamaha dealership
have the tools, experience, and know-how to
properly service your machine. Use only genu-
ine Yamaha parts on your machine. Imitation
parts may look like Yamaha parts, but they are
often inferior. Consequently, they have a short-
er service life and can lead to expensive repair
bills.
WARNING
Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-lot lights from water heaters or furnaces.

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Engine overheatingNOTE:If it is difficult to get the recommended coolant, tap water can be temporarily used, provided that itis changed to the recommended coolant as soon as possible.
WARNING
Wait for the engine and radiator to cool before removing the radiator cap. You could be burned by
hot fluid and steam blown out under pressure. Always put a thick rag over the cap when opening.Allow any remaining pressure to escape before completely removing the cap. Wait until the
engine has cooled.
Check the coolant level in the
reservoir tank and/or radiator.
Level is OK.Level is low, check the
cooling system for leakage.
No
leakage.Leakage.
Ask a Yamaha dealer to inspect
and repair the cooling system.Add coolant. (See NOTE.)
Restart the engine. If the engine overheats again, ask a
Yamaha dealer to inspect and/or repair the cooling system.

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7. Automotive type wax may be applied to
all painted and chrome plated surfaces.
Avoid combination cleaner-waxes. Many
contain abrasives which may mar the
paint or protective finish.
When finished, start the engine and let it
idle for several minutes.
WARNING

Wet brakes may have reduced stopping abili-
ty, increasing the chance of an accident. Test
the brakes after washing. Apply the brakes
several times at slow speeds to let friction dry
out the linings.

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Bulb voltage, wattage
´
quantity:
Headlight 12 V, 30 W / 30 W
´
2
Taillight 12 V, 7.5 W
´
1
Neutral indicator light 12 V, 1.7 W
´
1
Reverse indicator light 12 V, 1.7 W
´
1
Coolant oil temperature warning light 12 V, 1.7 W
´
1
Park indicator light 12 V, 1.7 W
´
1
Four wheel drive indicator light 12 V, 1.7 W
´
1 Model YFM400FA / YFM400FWAN