2001 YAMAHA YFM400F battery

Yuki_Data:Yuki_data:Yuki:Yuki_1:ATV:HM00B061_YFM400FWA-61:YFM600TOC-
EL
V-belt cooling duct check hose ....... 8-77
Carburetor adjustment..................... 8-81
Idle speed adjustment...................... 8-83
Valve clearance adjustment ............ 8-85
Throttle lever adjustment ................ 8-87
Front brake pad inspection .............. 8-89
Rear brake pad inspection ............... 8-89
Inspecting the brake fluid level ....... 8-91
Brake fluid replacement ................... 8-95
Front brake adjustment.................... 8-97
Rear brake lever adjustment ........... 8-99
Cable inspection and
lubrication ..................................... 8-103
Brake lever and brake pedal
lubrication ..................................... 8-105
Wheel removal ............................... 8-107
Wheel installation........................... 8-109
Battery ............................................. 8-111
Battery maintenance ...................... 8-115
Fuse replacement ........................... 8-117
Replacing the headlight bulb ........ 8-121
Headlight beam adjustment .......... 8-125
Taillight bulb replacement............. 8-127
Troubleshooting ............................. 8-129
Troubleshooting chart ................... 8-131CLEANING AND STORAGE................... 9-1
A. Cleaning ......................................... 9-1
B. Storage ........................................... 9-7
SPECIFICATIONS ................................. 10-1
HOW TO USE THE CONVERSION
TABLE ................................................... 11-1
91011

4-15
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EBU00053
Handlebar switches
EBU00735
Light switch
Turn the switch to the “ ” position to switch
on the low beam and the taillight.
Turn the switch to the “ ” position to switch
on the high beam and the taillight.
Turn the switch to the “OFF” position to switch
off the headlight and the taillight.
CAUTION:

Do not use the headlight with the engine
turned off for more than thirty minutes. The
battery may discharge to the point that the
starter motor will not operate properly. If this
should happen, remove the battery and re-
charge it.
EBU00606
Engine stop switch
Make sure that the engine stop switch is in the
“ ” position. The engine stop switch con-
trols ignition and can be used at all times to
stop the engine, especially in an emergency.
The engine will not start or run when the en-
gine stop switch is turned to “ ”.
1. Lights switch
2. Engine stop switch
3. Start switch “ ”
4. Horn switch “ ”
1. Contacteur d’éclairage
2. Coupe-circuit du moteur
3. Contacteur du démarreur “ ”
4. Contacteur de l’avertisseur “ ”
1. Interruptor de luces
2. Interruptor de paro del motor
3. Interruptor de arranque “ ”
4. Interruptor de la bocina “ ”

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CAUTION:l
Do not use accessories requiring more
than the above maximum capacity. This
may overload the circuit and cause the
fuse to blow.
l
If accessories are used without the engine
running or with the headlight turned on,
the battery will lose its charge and engine
starting may become difficult.
l
Do not use an automotive cigarette light-
er or other accessories with a plug that
gets hot because the jack can be dam-aged.

6-7
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a. Starter (choke) lever
1. Fully open
2. Half open
3. Closed
a. Starter (enrichisseur)
1. Complètement ouvert
2. Mi-ouvert
3. Fermé
a. Palanca de starter (choke)
1. Abre completamente
2. Semiabierto
3. Cerrado
NOTE:

l
If the engine fails to start, release the start
switch, then push the start switch again.
Pause a few seconds before the next at-
tempt. Each cranking should be as short
as possible to preserve battery energy. Do
not crank the engine more than 10 sec-
onds on each attempt.
l
If the battery is discharged, pull the recoil
starter to start the engine.
7. If the engine is started with the starter
(choke) in position
1
, the starter (choke)
should be returned to position
2
to warm
up the engine. If the engine is started with
the starter (choke) in position
2
, keep the
starter (choke) in this position to warm up
the engine.
8. Continue warming up the engine until it
idles smoothly and return the starter
(choke) to position
3
before riding.
CAUTION:

See the “Engine break-in” section prior to op-
erating the engine for the first time.

8-111
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EBU00381
Battery
This machine is equipped with a sealed-type
battery. Therefore it is not necessary to check
the electrolyte or add distilled water in the bat-
tery. If the battery seems to have discharged,
consult a Yamaha dealer.CAUTION:Do not try to remove the sealing caps of thebattery cells. You may damage the battery.

8-113
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WARNING
Battery electrolyte is poisonous and danger-
ous, causing severe burns, etc. It contains sul-
furic acid. Avoid contact with skin, eyes or
clothing.
Antidote:l
EXTERNAL: Flush with water.
l
lNTERNAL: Drink large quantities of wa-
ter or milk. Follow with milk of magnesia,
beaten egg or vegetable oil. Call a physi-
cian immediately.
l
EYES: Flush with water for 15 minutes
and get prompt medical attention.
Batteries produce explosive gases. Keep
sparks, flame, cigarettes or other sources of ig-
nition away. Ventilate when charging or using
in an enclosed space. Always shield your eyes
when working near batteries.
KEEP OUT OF REACH OF CHILDREN.

8-115
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EBU00385
Battery maintenance
1. When the machine is not used for a month
or longer, remove the battery and store it
in a cool, dark place. Completely recharge
the battery before reinstallation.CAUTION:A special battery charger (constant volt-
age/ampere or constant voltage) is required
for recharging a sealed-type battery. Using a
conventional battery charger may shorten thebattery life.
2. Always make sure the connections are
correct when putting the battery back in
the machine.

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8-131
EBU00724Troubleshooting chart
Starting problems or poor engine performance1. Fuel
Check if there is fuel
in the fuel tank.There is fuel.Turn the fuel cock
lever to “OFF”.No fuel.Fuel cock is
clogged.
Clean the
fuel cock. Some fuel.Turn the fuel cock
lever to “RES”.Restart the engine.
No fuel.Supply fuel.
2. Compression
Use the electric
starter to see if
there is compression.There is compression.
Compression normal.
No compression.Ask a Yamaha dealer to
inspect.
3. Ignition
Remove the
spark plug and
check electrodes.WetWipe clean with dry cloth.
DryAttach spark plug cap and
ground to chassis.Use the
electric starter.Spark is good.Ignition system is
normal.
Spark is weak.
Adjust the spark plug gap
or replace the spark plug. No spark.
Ask a Yamaha dealer to
inspect. 4. Battery
Use the electric starter.Engine turns over
quickly.Battery is good.
Engine turns over
slowly.Check the connections.Check the
fuel flow.
Turn the fuel cock
lever to “ON”.
Remove the fuel hose
from the fuel cock.