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EVU00400FuelMake sure there is sufficient fuel in the tank.
WARNING
Gasoline and gasoline vapors are ex-
tremely flammable. To avoid fires and ex-
plosions and to reduce the risk of injury
when refueling, follow these instructions.1. Before refueling, turn off the engine and be sure that no one is sitting in the vehi-
cle. 
Never refuel while smoking, or while in
the vicinity of sparks, open flames, or oth-
er sources of ignition such as the pilot
lights of water heaters and clothes dry-
ers.
2. Do not overfill the fuel tank. Because fuel
expands when it heats up, heat from the
engine or the sun can cause fuel to spill
out of the fuel tank.
3. Wipe up any spilled fuel immediately. 4. Be sure the fuel tank cap is closed se-
curely.
WARNING
Gasoline is poisonous and can cause inju-
ry or death. Handle gasoline with care.
Never siphon gasoline by mouth. If you
should swallow some gasoline or inhale a
lot of gasoline vapor, or get some gasoline
in your eyes, see your doctor immediately.
If gasoline spills on your skin, wash with
soap and water. If gasoline spills on your
clothing, change your clothes.Your Yamaha engine has been designed to
use regular unleaded gasoline with a re-
search octane number of 91 or higher (95 or
higher for Europe). If knocking or pinging oc-
curs, use a different brand of gasoline or pre-
mium unleaded gasoline. Unleaded fuel will
give you longer spark plug life and reduced
maintenance cost.
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Driver requirements●
This vehicle is intended for use only by an
operator 16 or older with a valid motor vehi-
cle license. Check country laws for mini-
mum age requirements.
●
The driver must be able to place both feet
flat on the floorboard while seated upright
with his/her back against the backrest.
●
Do not drive after using drugs or alcohol.
Remove the ignition key when the vehicle is
not in use to prevent unauthorized use of the
machine. Parents:
Many countries have implemented new motor
vehicle licensing requirements for young driv-
ers. These requirements are in response to
the disproportionately high rate of crashes in-
volving youthful drivers. As with automobiles,
to promote safe driving behaviors, you should
supervise younger drivers and consider set-
ting rules and putting limits on how, when, and
where the Viking can be used.
DRIVER
UNDER16
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EVU00950BatteryThe battery is located under the hood. (See
page 8-7 for hood removal and installation
procedures.)
This model is equipped with a VRLA (Valve
Regulated Lead Acid) battery. There is no
need to check the electrolyte or to add distilled
water. However, the battery lead connections
need to be checked and, if necessary, tight-
ened.
WARNING
Avoid battery contact with skin, eyes, or
clothing. Shield eyes when working near
batteries. Keep out of reach of children.
You could be poisoned or severely burned
by the sulfuric acid in battery electrolyte.
In case of accidental contact with battery
electrolyte:
EXTERNAL: Flush with water.
INTERNAL: Drink large quantities of water
or milk. Follow with milk of magnesia,
beaten egg, or vegetable oil. Get prompt
medical attention.
EYES: Flush with water for 15 minutes and
get prompt medical attention.
WARNING
Batteries may produce explosive gases.
Ventilate when charging or using in a
closed space. Keep batteries away from
sparks, flames, cigarettes, or other sourc-
es of ignition.
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5B410023Fuse replacementThe main fuse, the fuel injection system fuse,
the EPS fuse, and the fuse box are located
under the hood.1. Fuse box 2. Main fuse
3. EPS fuse
4. Fuel injection system fuse
5. Fuel injection system spare fuse 1. Backup fuse “BACK UP” (for clock)
2. Ignition fuse “IGNITION”
3. Four-wheel-drive motor fuse “DIFF”
4. Auxiliary DC jack fuse “TERMINAL”
5. Signaling system fuse “SIGNAL”
6. Headlight fuse “HEAD”
7. Spare fuse (
× 3)
8. Radiator fan motor fuse “FAN”
If a fuse is blown, replace it as follows.
1. Turn the key to “ ” (off) and turn off the
electrical circuit in question.
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NOTICETo prevent accidental short-circuiting,
turn off the main switch when checking or
replacing a fuse.2. Remove the hood. (See page 8-7 forhood removal and installation proce-
dures.)
3. Remove the blown fuse, and then install a new fuse of the specified amperage.
WARNING! Always use a fuse of the specified amperage. Never use any
material in place of the proper fuse.
Using an improper fuse can cause
damage to the electrical system and
may lead to a fire. 4. Turn the key to “ ” (on) and turn on the
electrical circuit in question to check if the
device operates. If the fuse blows again
immediately, have a Yamaha dealer
check the electrical system.
5. Install the hood. Specified fuses:
Main fuse: 40.0 A
Fuel injection system fuse: 10.0 A
Headlight fuse: 15.0 A
Ignition fuse: 10.0 A
Auxiliary DC jack fuse: 10.0 A
Signaling system fuse: 10.0 A
Four-wheel-drive motor 
fuse: 10.0 A
Radiator fan motor fuse: 25.0 A
Backup fuse: 10.0 A
EPS fuse: 40.0 A
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7. Install the quick fastener screws, bolts,and nuts, and then tighten the panel nuts
and the panel rear bolt to the specified
torques.
EVU01010TroubleshootingAlthough Yamaha vehicles receive an inspec-
tion before shipment from the factory, trouble
may occur during operation. Any problem in
the fuel, compression, or ignition systems can
cause poor starting and loss of power. The
troubleshooting chart describes a quick, easy
procedure for making checks. If your vehicle
requires any repair, take it to a Yamaha deal-
er.
The skilled technicians at a Yamaha dealer-
ship have the tools, experience, and know-
how to properly service your vehicle. Use only
genuine Yamaha parts on your vehicle. Imita-
tion parts may look like Yamaha parts, but
they are often inferior. Consequently, they
have a shorter service life and can lead to ex-
pensive repair bills.
Tightening torques:
Panel nut: 7 Nm (0.7 m·kgf, 5.1 ft·lbf)
Panel rear bolt: 4.0 Nm (0.40 m·kgf, 2.9 ft·lbf)
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5B410024Troubleshooting chartsStarting problems or poor engine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.There is no fuel.
Check the battery.
Supply fuel.
The engine does not start. 
Check the battery.
Operate the electric starter.4. Compression
There is compression.
There is no compression.
The engine does not start. 
Have a Yamaha dealer check the vehicle.Have a Yamaha dealer check the vehicle.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug. Have a Yamaha dealer check the vehicle.
The engine does not start.
Check the compression.
Operate the electric starter.2. Battery
The engine turns over  
quickly.
The engine turns over  
slowly.
The battery is good.
DryWet
Operate the electric starter.
Check the battery lead connections,
and have a Yamaha dealer charge 
the battery if necessary.
The engine does not start.
Check the ignition.
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Vehicle load: 300 kg – maximum (661 lb – maximum):
Front:70.0 kPa (0.700 kgf/cm
2, 10 psi)
Rear:
120.0 kPa (1.200 kgf/cm2, 17 psi)
Front wheel:Wheel type:YXM700PF Panel wheel
YXM700PHF Panel wheel
YXM700PSF Cast wheel
Rim size: 12  × 6.0ATRear wheel:Wheel type:
YXM700PF Panel wheel
YXM700PHF Panel wheel
YXM700PSF Cast wheel
Rim size: 12  × 7.5ATFront brake:Type:
Disc brake
Operation: Unified brake
Recommended fluid:
DOT 4Rear brake:Type:Disc brake
Operation:
Unified brake Recommended fluid:
DOT 4
Front suspension:Type:
Double wishbone
Spring/shock absorber type: Coil spring/gas-oil damper
Wheel travel: 205 mm (8.1 in)Rear suspension:Type:Double wishbone
Spring/shock absorber type: Coil spring/gas-oil damper
Wheel travel:
205 mm (8.1 in)Electrical system:Ignition system:TCI
Charging system:
AC magnetoBattery:Model:U1-H11L
Voltage, capacity:
12 V, 28.0 AhHeadlight:Bulb type:Halogen bulb
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