2003 YAMAHA BIG BEAR PRO 400 light

4-15
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. _
EBU00059
Horn switch “”
Press the switch to sound the horn.
EE.book Page 15 Monday, June 18, 2001 10:18 AM

4-29 1. Recoil starter
1. Lanceur à réenroulement
1. Arranque por tracción de cable
1. Fuel tank cap
1. Bouchon de réservoir de carburant
1. Tapón del depósito de combustible
EBU00591
Recoil starter
Firmly grasp the handle and pull slightly until en-
gagement can be felt. Then pull forcefully, being
careful not to pull the rope all the way out.
WARNING
Put the transmission in neutral and set the
parking brake before starting the engine or the
ATV could start to move unexpectedly, which
could cause an accident.
EBU00092
Fuel tank cap
Remove the fuel tank cap by turning it counter-
clockwise.
EE.book Page 29 Monday, June 18, 2001 10:18 AM

4-43 1. Auxiliary DC jack 2. Cap
1. Connecteur pour accessoires 2. Capuchon
1. Toma de CC auxiliar 2. Tapa
EBU00748
Auxiliary DC jack
The auxiliary DC jack is located at the front right
side of the ATV. The auxiliary DC jack can be used
for suitable work lights, radios, etc. The auxiliary
DC jack can only be used when the main switch is
in the “ON” position.
1. Turn the headlight switch to the “OFF” posi-
tion.
2. Start the engine. (See pages 6-3 ~ 6-7.)
3. Open the auxiliary DC jack cap and insert the
accessory power plug into the jack.
4. When the auxiliary DC jack is not being used,
cover it with the cap. Maximum rated capacity for the auxiliary
DC jack:
DC 12 V, 120 W (10 A)
EE.book Page 43 Monday, June 18, 2001 10:18 AM

4-45
CAUTION:_

Do not use accessories requiring more
than the above maximum capacity. This
may overload the circuit and cause the
fuse to blow.


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.


Do not use an automotive cigarette lighter
or other accessories with a plug that gets
hot because the jack can be damaged.
_
EE.book Page 45 Monday, June 18, 2001 10:18 AM

5-1
EBU00113
1-PRE-OPERATION CHECKS
Before using this machine, check the following points:
ITEM ROUTINE PAGE
Front brakeCheck operation, free play, fluid level and fluid leakage.
Fill with DOT 4 brake fluid if necessary.5-5 ~ 5-7,
8-55 ~ 8-73
Rear brakeCheck operation, pedal height and free play.
FuelCheck fuel level.
Fill with fuel if necessary.5-9 ~ 5-11
Engine oil/
Transfer gear oilCheck oil level.
Fill with oil if necessary.5-13 ~ 5-15,
8-13 ~ 8-25
Final gear oil/
Differential gear oilCheck for leakage. 5-17, 8-27 ~ 8-35
ThrottleCheck for proper throttle cable operation. 5-17, 8-55
Wheels and tiresCheck tire pressure, wear and damage.5-21 ~ 5-27,
8-79 ~ 8-83
Fittings and FastenersCheck all fittings and fasteners. 5-19
LightsCheck for proper operation. 5-19, 8-91 ~ 8-95
Axle bootsCheck operation. 8-35
EE.book Page 1 Monday, June 18, 2001 10:18 AM

5-19
EBU00152
Fittings and Fasteners
Always check the tightness of chassis fittings and
fasteners before a ride. Take the machine to a
Yamaha dealer or refer to the Service Manual for
correct tightening torque.
EBU00803
Lights
Check the headlight and tail/brake light to make
sure they are in working condition. Repair as nec-
essary for proper operation.
EBU00912
Switches
Check the operation of the light switch, engine
stop switch and any other switches. Repair as nec-
essary for proper operation.
EE.book Page 19 Monday, June 18, 2001 10:18 AM

6-5 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 del estárter (estrangulador)
1. Abre completamente
2. Semiabierto
3. Cerrado
NOTE:

When the transmission is in neutral, the neu-
tral indicator light should come on. If the light
does not come on, ask a Yamaha dealer to in-
spect it.


The engine can be started with the transmis-
sion and drive select lever in any position if the
rear brake lever is applied. However, it is rec-
ommended to shift into neutral before starting
the engine.
5. Use the starter (choke) in reference to the fig-
ure:
Position
1: Cold engine start-
ambient temperature below 5°C.
Position
2: Cold engine start-
ambient temperature at 0°C ~ 30°C
and warming up position.
Position
3: Cold engine start-
ambient temperature above 25°C
and warm engine start position.
6. Completely close the throttle lever and start
the engine by pushing the start switch.
EE.book Page 5 Monday, June 18, 2001 10:18 AM

6-9
EBU00180
Starting a warm engine
To start a warm engine, refer to the “Starting a cold
engine” section. The starter (choke) should not be
used. The throttle should be opened slightly.
EBU00182
Warming up
To get maximum engine life, always warm up the
engine before starting off. Never accelerate hard
with a cold engine! To see whether or not the en-
gine is warm, check if it responds to the throttle
normally with the starter (choke) turned off.
EE.book Page 9 Monday, June 18, 2001 10:18 AM