fuel YAMAHA VIKING 2016 User Guide

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
8-35.)
 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 8-33.) 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 8-32.)
EBU33200FuelMake sure there is suffi
cient fuel in the tank.
Specified brake fluid: DOT 4
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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.
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Portable fuel containers
If you carry a portable fuel container in the
bed of your Yamaha Viking, be sure to secure
it with the cap tightened before driving the ve-
hicle.
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 8-11.)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.
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EBU32030Periodic maintenance chart for the emission control systemFor vehicles not equipped with an odometer or hour meter, follow the month maintenance in-
tervals.
 For vehicles equipped with an odometer or an ho ur meter, follow the km (mi) or hours mainte-
nance intervals. However, keep in mind that if the vehicle isn’t used for a long period of time,
the month maintenance intervals should still be followed.
 Items marked with an asterisk should be perfor med by a Yamaha dealer as they require special
tools, data and technical skills.NO. ITEM ROUTINE INITIAL
EVERY
Whichev- er comes first month136612
km
(mi) 320
(200) 1200
(750) 2400
(1500) 2400
(1500) 4800
(3000)
hours 20 75 150 150 300
1 *Fuel line • Check fuel hose for cracks or damage.
• Replace if necessary. √√√
2 *Va l v e s • Check valve clearance.
• Adjust if necessary. √ √√√
3Spark plug • Check condition.
• Adjust gap and clean.
• Replace if necessary. √√√√√
4 *Crankcase
breather system • Check breather hose for cracks or damage.
• Replace if necessary.
√√√
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Installation1. Clean the surface of the spark plug gas-
ket and its mating surface, and then wipe
off any grime from the spark plug
threads.
2. Install the spark plug and tighten it to the specified torque. If a torque wrench is not
available when you are installing the
spark plug, a good estimate of the cor-
rect torque is one-quarter to one-half turn
past finger tight. Have the spark plug
tightened to the specified torque as soon
as possible.
3. Install the spark plug cap.
4. Lower the cargo bed.
EBU34810Cleaning the air filter elementThe air filter element should be cleaned every
20–40 hours. It should be cleaned and lubri-
cated more often if the vehicle is operated in
extremely dusty areas. Each time air filter ele-
ment maintenance is performed, check the air
inlet to the air filter case for obstructions.
Check the air filter element rubber joint to the
throttle body and manifold fittings for an air-
tight seal. Tighten all fittings securely to avoid
the possibility of unfiltered air entering the en-
gine.NOTICEECB02270Never operate the engine with the air filter
element removed. Doing so would allow
unfiltered air to enter, causing rapid en-
gine wear and possible engine damage.
Additionally, the fuel injection system
would be affected, resulting in poor engine
performance and possible overheating.
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)
Tightening torque: Spark plug:13 Nm (1.3 m·kgf, 9.4 ft·lbf)
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8-32
8
EBU32460Valve clearanceThe correct valve clearance changes with
use, resulting in improper fuel/air supply or
engine noise. To prevent this, the valve clear-
ance must be adjusted regularly. This adjust-
ment however, should be left to a
professional Yamaha service technician.EBU32470BrakesReplacement of brake components requires
professional knowledge. Brake service
should be performed by a Yamaha dealer.
WARNING
EWB02572Operating with improperly serviced or ad-
justed brakes could lead to a loss in brak-
ing ability and an accident.
EBU32480Checking the front and rear brake padsEach brake pad is provided with wear indica-
tor grooves, which allow you to check the
brake pad wear without having to disassem-
ble the brake. To check the brake pad wear,
check the wear indicator grooves. If a brake
pad has worn to the point that the wear indi-
cator grooves have almost disappeared, have
a Yamaha dealer replace the brake pads as a
set.
The wheels need to be removed to check the
brake pads. (See pages 8-39, 8-41 for wheel
removal and installation procedures.)
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8-46
8
4. Connect the negative lead of the jumpercable to the negative terminal of the
charged battery and the other end of the
negative lead to an unpainted metal sur-
face of the frame of the vehicle to be
started.
5. Start the engine. (Refer to “Starting the engine” on page 6-2.)
6. After the engine starts, disconnect the
negative lead of the jumper cable from
the frame and charged battery, and then disconnect the positive lead of the jump-
er cable from the charged battery and the
battery in the vehicle.
7. Install the hood.
EBU33100Fuse replacementThe main fuse, the fuel injection system fuse,
the EPS fuse, and the fuse box are located
under the hood. (See page 8-10 for hood re-
moval and installation procedures.)
1. Jumper cable negative lead
1
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If a fuse is blown, replace it as follows.1. Turn the key to “ ” (off) and turn off the
electrical circuit in question.
1. Fuse box
2. Main fuse
3. EPS fuse
4. Fuel injection system fuse
5. Fuel injection system spare fuse
1 3
2
4
5
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
8. Radiator fan motor fuse “FAN”
1
2
3
4
5
6
8
7
7
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8
NOTICEECB00641To prevent accidental short-circuiting,
turn off the main switch when checking or
replacing a fuse. 2. Remove the hood. (See page 8-10 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.
[EWB03440]
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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8-53
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2. Remove the tail/brake light bulb holder(together with the bulb) by turning it
counterclockwise.
3. Push the burnt-out bulb in and turn it counterclockwise to remove it from the
bulb holder.
4. Push a new bulb in and turn it clockwise to install in the bulb holder.
5. Install the bulb holder (together with the
bulb) by turning it clockwise.
6. Install the panel. 7. Install the quick fastener screws, bolts,
and nuts, and then tighten the panel nuts
and the panel rear bolt to the specified
torques.
EBU32700TroubleshootingAlthough 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.
1. Tail/brake light bulb holder
1
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)
UB427AE0.book Page 53 Monday, May 18, 2015 9:17 AM