Page 65 of 184

4-25
4
Do not subject the shock absorber as-
semblies to an open flame or other high
heat source. This may cause the unit to
explode due to excessive gas pressure.
Do not deform or damage the cylinders
in any way. Cylinder damage will result in
poor damping performance.
Do not dispose of a damaged or worn
out shock absorber assembly yourself.
Take the shock absorber assembly to a
Yamaha dealer for any service. EBU31550Trailer hitch bracket and receiverThis vehicle is equipped with a trailer hitch
bracket and a 5 cm (2 in) receiver for a stan-
dard trailer hitch. Tr ailer towing equipment
can be obtained at a Yamaha dealer. (See
page 6-7 for precaution information.)
EBU31560Auxiliary DC jacksThis vehicle is equipped with two auxiliary DC
jacks. One auxiliary DC jack is located at the
right side of the storage compartment under
the multi-function meter, and the other is lo-
cated in front of the rear right passenger seat.
The auxiliary DC jacks can be used for suit-
able work lights, radios, etc. The auxiliary DC
jacks should only be used when the engine is
running and the headlights are turned off.1. Trailer hitch bracket
2. Receiver
2
1
UB857AE0.book Page 25 Monday, August 24, 2015 8:59 AM
Page 66 of 184
4-26
4
NOTICEECB02110The combined load of the accessories
connected to the front and rear auxiliary
DC jacks must never exceed the stated
maximum capacity. Exceeding the maxi-
mum capacity may overload the circuit
and cause the fuse to blow.
If accessories are used without the en-
gine running, the battery may discharge.
Do not use an automotive cigarette light-
er or other accessories with a plug that
gets hot, because the jack can be dam-
aged. To use an auxiliary DC jack1. Set the light switch to “ ”.
2. Turn the accessory off.
3. Start the engine. (See page 6-2.)
4. Open the auxiliary DC jack cap, and then
insert the accessory power plug into the
jack.
1. Auxiliary DC jack cap
2. Front auxiliary DC jack
1. Auxiliary DC jack cap
2. Rear auxiliary DC jack
2
1
21
UB857AE0.book Page 26 Monday, August 24, 2015 8:59 AM
Page 67 of 184
4-27
4
5. Turn the accessory on.
6. When the auxiliary DC jack is not beingused, cover it with the cap.Maximum rated capacity for the auxiliary DC
jack:DC 12 V, 10 A (120 W)
UB857AE0.book Page 27 Monday, August 24, 2015 8:59 AM
Page 68 of 184

5-1
5
EBU31572
FOR YOUR SAFETY – PRE-OPERATION CHECKS
EBU31581Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition.
Always follow the inspection and maintenance procedures and schedules described in the Own-
er’s Manual.
WARNING
EWB00482Failure to inspect or maintain the vehicle properly increases the possibility of an accident
or equipment damage. Do not operate the vehicle if you find any problem. If a problem can-
not be corrected by the procedures provided in this manual, have the vehicle inspected by
a Yamaha dealer. Before using this vehicle, check the following points:
ITEM ROUTINE PAGE
Brakes • Check operation, free play, fluid level, and fluid leakage.
• Fill with DOT 4 brake fluid if necessary. 5-3, 8-36, 8-41
Parking brake • Check for proper operation, condition, and free play. 8-39
Fuel • Check fuel level.
• Fill with the recommended fuel if necessary. 5-3
Engine oil • Check oil level.
• Fill with oil to proper level if necessary. 5-5, 8-12
UB857AE0.book Page 1 Monday, August 24, 2015 8:59 AM
Page 69 of 184
5-2
5
Coolant• Check coolant level in reservoir.
• Fill with coolant if necessary.
5-6, 8-20
Final gear oil/Differen-
tial gear oil • Check for leakage. 5-6, 5-6, 8-16, 8-18
Accelerator pedal • Check for proper accelerator pedal operation. 5-7
Seat belts • Check for proper operation and belt wear. 5-7
Passenger handhold • Check for stability and proper fastening. 5-7, 7-9
Steering • Check for proper operation. 5-7
Fittings and fasteners • Check all fittings and fasteners. 5-8
Instruments, lights and
switches • Check operation, and correct if necessary. 5-8, 8-53, 8-55, 8-56
Wheels and tires • Check tire pressure and for wear and damage. 5-8, 8-43, 8-45
Axle boots • Check for damage. 8-25
ITEM ROUTINE PAGE
UB857AE0.book Page 2 Monday, August 24, 2015 8:59 AM
Page 70 of 184

5-3
5
EBU31730Front and rear brakesBrake pedal
Check that there is no free play in the brake
pedal. If there is free play, have a Yamaha
dealer check the brake system. (See page
8-39.)
Check the operation of the brake pedal. It
should move smoothly and there should be
a firm feeling when the brakes are applied.
If not, have the vehicle inspected by a
Yamaha dealer.
Brake fluid level
Check the brake fluid level. Add fluid if neces-
sary. (See page 8-37.) Brake fluid leakage
Check to see if any brake fluid is leaking out
of the pipe joints or the brake fluid reservoir.
Apply the brakes firmly for one minute. If there
is any leakage, have the vehicle inspected by
a Yamaha dealer.
Brake operation
Check the operation of the brakes at the start
of every ride. Test the brakes at slow speed
after starting out to make sure they are work-
ing properly. If the brakes do not provide
proper braking performance, inspect the
brake system. (See page 8-36.)
EBU33200FuelMake sure there is sufficient fuel in the tank.
Specified brake fluid: DOT 4
UB857AE0.book Page 3 Monday, August 24, 2015 8:59 AM
Page 71 of 184

5-4
5
WARNING
EWB02522Gasoline 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 andbe sure that no one is sitting in the vehi-
cle.
Never refuel while smoking, or while in
the vicinity of sparks, open flames, or
other 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
EWB02532Gasoline 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 research
octane number of 91 or higher (95 or higher
for Europe). If knocking or pinging occurs,
use a different brand of gasoline or premium
unleaded gasoline. Unleaded fuel will give
you longer spark plug life and reduced main-
tenance cost.
UB857AE0.book Page 4 Monday, August 24, 2015 8:59 AM
Page 72 of 184

5-5
5
Portable fuel containers
If you carry a portable fuel container in the
bed of your Yamaha Viking VI, be sure to se-
cure it with the cap tightened before driving
the vehicle.
Always place a portable fuel container on the
ground before filling it. Before removing the
container cap, touch the container with the
fuel dispenser nozzle. Keep fuel dispenser
nozzle in contact with container inlet when fill-
ing. WARNING! Never refill a fuel container
in the bed of any vehicle. Fire may result
from a build-up of static electricity. The discharge of this build-up while refueling
can cause a spark and ignite the gasoline.
[EWB03270]
EBU31750Engine oilMake sure the engine oil is at the specified
level. Add oil as necessary. (See page 8-12.)NOTICEECB00301
In order to prevent clutch slippage (since
the engine oil also lubricates the clutch),
do not mix any chemical additives. Do
not use oils with a diesel specification of
“CD” or oils of a higher quality than
specified. In addition, do not use oils la-
beled “ENERGY CONSERVING II” or
higher.
Make sure that no foreign material en-
ters the crankcase.
Recommended fuel:
Regular unleaded gasoline only
For Europe: Regular unleaded gasoline only
with a research octane number of 95 or
higher
Fuel tank capacity: 36.7 L (9.69 US gal, 8.07 Imp.gal)
Recommended engine oil type and quantity:See page 10-1.
UB857AE0.book Page 5 Monday, August 24, 2015 8:59 AM