2018 YAMAHA WOLVERINE engine

5-5
5
For EuropeTIPWhen refueling, check that the gasoline pump
nozzle has same fuel identification mark.
Portable fuel containers
If you carry a portable fuel container in the
bed of your Yamaha Wolverine, 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 8-14.)
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)1. EN228 fuel identification mark
E10
1
UB3D7AE0.book Page 5 Tuesday, November 7, 2017 9:38 AM

5-6
5
NOTICEECB00301In order to prevent cl utch 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. EBU31761CoolantCheck the coolant level in the reservoir and
replenish if necessary. (See page 8-25.)
EBU36020Final gearMake sure there is no oil leaking from the final
gear case.EBU36030Differential gearMake sure there is no oil leaking from the dif-
ferential gear case.EBU31791Accelerator pedalBefore starting the engine, confirm that the
accelerator pedal operates correctly. It
should depress smoothly and spring back to
the idle position when released. Also check
the accelerator pedal for excessive free play.
If the accelerator pedal is not in correct work-
ing order, have the vehicle inspected before
starting off.
Recommended engine oil type and quantity:
See page 10-1.
UB3D7AE0.book Page 6 Tuesday, November 7, 2017 9:38 AM

6-1
6
EBU31872
OPERATION
EBU31880Read the Owner’s Manual carefully to be-
come familiar with all controls. If there is a
control or function you do not understand,
ask your Yamaha dealer.
WARNING
EWB03290Failure to familiarize yourself with the con-
trols can lead to loss of control, which
could cause an accident or injury. EBU31890Engine break-inThere is never a more important period in the
life of your vehicle than the period between 0
and 20 hours.
For this reason, we ask that you read the fol-
lowing material carefully. Because the engine
is brand new, you must not put an excessive
load on it for the first several hours of opera-
tion. During the first 20 hours, the variousparts in the engine wear and polish them-
selves to achieve the correct operating clear-
ances.
During this period, prolonged full-throttle op-
eration or any condition that might result in
excessive engine heating must be avoided.
However, momentary (2–3 seconds maxi-
mum) full-throttle operation under load does
not harm the engine.
Each full-throttle acceleration sequence
should be followed with a substantial rest pe-
riod for the engine, by cruising at lower r/min
so the engine can rid itself of the temporary
build-up of heat. If any abnormality is noticed
during this period, consult a Yamaha dealer.
0–10 hours:
Avoid continuous operation above 1/2-throt-
tle. Allow a cooling-off period of 5 to 10 minu-
tes after every hour of operation. Vary the
speed of the vehicle from time to time. Do not
operate it at one set throttle position.UB3D7AE0.book Page 1 Tuesday, November 7, 2017 9:38 AM

6-2
6
10–20 hours:
Avoid prolonged operation above three-quar-
ter throttle.
After break-in:
The vehicle may now be operated normally.EBU33081Starting the engine1. Turn the key to “ ” (on).NOTICEECB02291The coolant temperature warning light and
engine trouble warning light should come
on, then go off.
The EPS warning light should come on,
then go off when the engine is started.
To avoid possible damage, do not operate
the vehicle if a warning light does not work
as described above. 2. Apply the brake pedal.
3. Shift the drive select lever into the neutralposition. 
When the drive select lever is in the
neutral position, the neutral indicator
light should come on. If the neutral indi-
cator light does not come on, ask a
Yamaha dealer to inspect the electric
circuit.
 The engine can be started in any gear if
the brake pedal is applied. However, it
is recommended to shift into neutral
before starting the engine.
4. With your foot off the accelerator pedal,
start the engine by turning the key to “ ”
(start).
If the engine fails to start, release the key, and
then try starting it again. Wait a few seconds
before the next attempt. Each attempt should
be as short as possible, to preserve battery
energy. NOTICE: Do not crank the engine
more than 5 seconds on each attempt, or
starter damage could occur. Wait at least
5 seconds between each operation of the
electric starter to let it cool.
[ECB02140]
UB3D7AE0.book Page 2 Tuesday, November 7, 2017 9:38 AM

6-3
6
Do not turn the key to the “ ” (start) position
with the engine running; otherwise, damage
to the electric starter may result.TIPFor maximum engine life, never accelerate
hard when the engine is cold! EBU31912Drive select lever operation and re-
verse drivingNOTICEECB02150Do not shift without coming to a complete
stop and waiting for the engine to return to
normal idle speed. Damage to the engine
or drive train may occur. Shifting: neutral to high and high to low1. Stop the vehicle, and take your foot off
the accelerator pedal. 2. Apply the brake pedal, then shift by mov-
ing the drive select lever along the shift
guide. Make sure that the drive select le-
ver is completely shifted into position.
3. Release the parking brake, if applied.
4. Release the brake pedal and press the accelerator pedal gradually.
1. Drive select lever
2. L (Low-range)
3. H (High-range)
4. N (Neutral)
5. R (Reverse)
1
2
5 4
3
UB3D7AE0.book Page 3 Tuesday, November 7, 2017 9:38 AM

6-4
6
Shifting: neutral to reverse
WARNING
EWB03300Before you shift into reverse, make sure
there are no obstacles or people behind
you. When it is safe to proceed, go slowly.
Hitting an obstacle or person could result
in serious injury or death. 1. Stop the vehicle, take your foot off the ac- celerator pedal, and check behind you.
2. Apply the brake pedal.
3. Shift from neutral to reverse by moving the drive select lever along the shift gui-
de.
When in reverse, the reverse indicator
light should be on. If the light does not
come on, ask a Yamaha dealer to in-
spect the reverse indicator light electri-
cal circuit.
 Due to the synchronizing mechanism in
the engine, the light may not come on
until the vehicle starts moving. 4. Release the parking brake, if applied.
5. Check behind the vehicle for people or
obstacles, and then release the brake
pedal.
6. Press the accelerator pedal gradually and
continue to watch to the rear while back-
ing.
1. Drive select lever
2. L (Low-range)
3. H (High-range)
4. N (Neutral)
5. R (Reverse)
1
2
5 4
3
UB3D7AE0.book Page 4 Tuesday, November 7, 2017 9:38 AM

6-7
6
EBU31930ParkingWhen parking, stop the engine and shift the
drive select lever into the neutral position. Ap-
ply the parking brake to help prevent the ve-
hicle from rolling. See page 7-16 for more
information on parking and parking on a
slope.EBU31941LoadingTake extra precautions when driving with a
load or trailer. Follow these instructions and
always use common sense and good judg-
ment when carrying cargo or towing a trailer.
Prepare your load or trailer
Use the hooks equipped on the cargo bed to
tie down loads. (See page 4-20.)
Choose a trailer hitch drawbar designed for
use with a 2" (5 cm) receiver. (See page 4-32.)
WARNING
EWB04260Improper loading or towing can increase
the risk of loss of control, an overturn, or
other accident:
Keep weight in the cargo bed centered
side to side, and as low and as far for-
ward as possible. Top-heavy loads in-
crease the risk of overturn. Be sure
cargo is secured — a loose load could
change handling unexpectedly or strike
occupants.
 Be sure to tie down cargo in the trailer
securely — a shifting load can cause an
accident.
 Make sure the load does not interfere
with your control or ability to see where
you are going.
 Do not exceed the Maximum Load Limits
for each section of the vehicle or the
Maximum Vehicle Load.
UB3D7AE0.book Page 7 Tuesday, November 7, 2017 9:38 AM

7-14
7
Become familiar with the way the vehicle feels
in low and high ranges, first in two-wheel
drive “2WD” and then in four-wheel drive
“4WD” and four-wheel drive with the differen-
tial locked “DIFF LOCK”. Steering may take
more effort in four-wheel drive with the differ-
ential locked “DIFF LOCK”. Also practice
driving in reverse.
Take the time to learn basic operation of the
vehicle before attempting more difficult ma-
neuvers.Getting ready to ride
Perform the Pre-Operation Checks on page
5-1. Follow the instructions starting on page
6-2 to start the engine.
Turning
Use care in turns – tu
rning the steering wheel
too far or too fast can result in loss of control
or a rollover. Slow down before entering
turns. When making tight turns from a stand-
still or at slow speeds, avoid sudden or hard
acceleration. Driving aggressively or making
abrupt maneuvers even on flat, open areas
can cause side rollovers. Avoid sideways slid-
ing, skidding, or fishtailing (rear-wheel slid-
ing), and never do donuts. If you feel the
Wolverine begin to slide sideways or the rear
wheels begin to slide during a turn, steer into
the direction of the slide, if possible, and
gradually let off the accelerator pedal to re-
gain directional control and avoid rollover. For
example, if you feel the back of the vehicle
start to slide to your right, steer to the right.UB3D7AE0.book Page 14 Tuesday, November 7, 2017 9:38 AM