2015 YAMAHA WOLVERINE check engine

EBU31120
CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS ....................... 1-1
SAFETY INFORMATION ......................... 2-1
DESCRIPTION......................................... 3-1Left view ............................................... 3-1
Right view ............................................. 3-2
Controls and instruments ..................... 3-3
INSTRUMENT AND CONTROL
FUNCTIONS............................................ 4-1 Main switch .......................................... 4-1
Indicator lights and warning lights ....... 4-2
Multi-function meter unit ...................... 4-6
Light switch ........................................ 4-10
On-Command drive knob “2WD/4WD/DIFF LOCK” .................. 4-11
Horn switch ........................................ 4-12
Accelerator pedal ............................... 4-12
Brake pedal ........................................ 4-12 Parking brake lever ............................ 4-13
Drive select lever ................................ 4-13
Fuel tank cap...................................... 4-14
Doors .................................................. 4-14
Seats .................................................. 4-15
Adjusting the driver seat position....... 4-16
Seat belts ........................................... 4-17
Glove compartment ........................... 4-17
Storage compartments ...................... 4-18
Cup holders ........................................ 4-19
Cargo bed .......................................... 4-20
Adjusting the front shock absorber
assemblies ....................................... 4-22
Adjusting the rear shock absorber
assemblies ....................................... 4-27
Trailer hitch bracket and receiver....... 4-32
Auxiliary DC jack ................................ 4-32
FOR YOUR SAFETY –
PRE-OPERATION CHECKS.................... 5-1 Front and rear brakes ........................... 5-3
Fuel....................................................... 5-3
Engine oil.............................................. 5-5U2MB7AE0.book Page 1 Thursday, January 29, 2015 3:42 PM

Coolant ................................................. 5-6
Final gear oil ......................................... 5-6
Differential gear oil................................ 5-6
Accelerator pedal ................................. 5-7
Seat belts ............................................. 5-7
Passenger handhold ............................ 5-7
Steering ................................................ 5-7
Fittings and fasteners ........................... 5-8
Instruments, lights and switches .......... 5-8
Control cables ...................................... 5-8
Tires ...................................................... 5-8
OPERATION ............................................ 6-1 Engine break-in .................................... 6-1
Starting the engine ............................... 6-2
Drive select lever operation and reverse driving .................................... 6-3
On-Command drive knob..................... 6-5
Parking ................................................. 6-7
Loading................................................. 6-7
BASIC GUIDE FOR SAFE USE .............. 7-1 KNOW YOUR VEHICLE........................ 7-1 LEARNING TO OPERATE YOUR
VEHICLE ...........................................7-12
PERIODIC MAINTENANCE AND
ADJUSTMENT .........................................8-1 Owner’s manual and tool kit .................8-2
Periodic maintenance chart for the emission control system .....................8-4
General maintenance and lubrication chart ....................................................8-6
Hood ...................................................8-10
Panels .................................................8-11
Engine oil and oil filter cartridge .........8-14
Final gear oil .......................................8-20
Differential gear oil ..............................8-22
Coolant ...............................................8-24
Axle boots ...........................................8-29
Spark plug inspection .........................8-30
Cleaning the air filter element .............8-32
Cleaning the air filter case/air duct check hose........................................8-35
V-belt case drain plug.........................8-36
Cleaning the spark arrester ................8-36
U2MB7AE0.book Page 2 Thursday, January 29, 2015 3:42 PM

4-4
4
EBU31330Coolant temperature warning light “ ”
If the coolant temperature reaches a specific
level, this light comes on to warn that the
coolant temperature is too hot. If the light
comes on during operation, stop the engine
as soon as it is safe to do so and allow the en-
gine to cool down for about 10 minutes. (See
page 8-60.)
The electrical circuit of the warning light can
be checked by turning the key to “ ” (on). If
the warning light does not come on initially
when the key is turned to “ ” (on), or if the
warning light remains on, have a Yamaha
dealer check the electrical circuit.NOTICEECB02040The engine may overheat if the vehicle is
overloaded. If this happens, reduce the
load to specification. 
After restarting, make sure that the
warning light is out. Continuous use
while this warning light is on may cause
damage to the engine.
EBU31340Engine trouble warning light “ ”
This warning light comes on or flashes if a
problem is detected in the electrical circuit
monitoring the engine. When this occurs,
have a Yamaha dealer check the self-diagno-
sis system. (See page 4-10 for an explanation
of the self-diagnosis device.)
The electrical circuit of the warning light can
be checked by turning the key to “ ” (on). If
the warning light does not come on initially
when the key is turned to “ ” (on), or if the
warning light remains on, have a Yamaha
dealer check the electrical circuit.
U2MB7AE0.book Page 4 Thursday, January 29, 2015 3:42 PM

4-5
4
EBU31350Electric Power Steering warning light
“EPS” (for EPS model)
This warning light comes on when the key is
turned to “ ” (on), and then goes off once
the engine is started. If the warning light re-
mains on or comes on after the engine is
started, the EPS system may not be working
correctly. When this occurs, have a Yamaha
dealer check the EPS system.
The electrical circuit of the warning light can
be checked by turning the key to “ ” (on). If
the warning light does not come on, have a
Yamaha dealer check the electrical circuit.TIPIf the steering load is too heavy (i.e., exces-
sive steering use when the Wolverine is trav-
eling at a slow speed), the power assist is
reduced to protect the EPS motor from over-
heating.
EBU31360Helmet indicator light “ ”
The indicator light comes on and stays on
while the key is turned to “ ” (on) to remind
the occupants to always wear a helmet. If the
indicator light does not come on when the key
is turned to “ ” (on), have a Yamaha dealer
check the electrical circuit.EBU31370Seat belt indicator light “ ”
The indicator light comes on when the key is
turned to “ ” (on) to remind the occupants
to fasten their seat belt. The indicator light
stays on until the driver seat belt is properly
latched. If the indicator light does not come
on when the key is turned to “ ” (on), or if
the indicator light remains on after the driver
seat belt is properly latched, have a Yamaha
dealer check the electrical circuit.
U2MB7AE0.book Page 5 Thursday, January 29, 2015 3:42 PM

4-10
4
Self-diagnosis device
This model is equipped with a self-diagnosis
device for various electrical circuits.
If a problem is detected in any of those cir-
cuits, the engine trouble warning light comes
on or flashes, and the multi-function display
indicates an error code.
If the multi-function display indicates an error
code, note the code number, and then have a
Yamaha dealer check the vehicle.
NOTICEECB00812If the multi-function display indicates an
error code, the vehicle should be checked
as soon as possible in order to avoid en-
gine damage. EBU31390Light switch “ / / ”Set the switch to “ ” to turn on the low
beam and the taillights.
Set the switch to “ ” to turn on the high
beam and the taillights.
1. Error code display
2. Engine trouble warning light “ ”
2
1
1. Light switch “ / / ”
L
H
1
L
HLH
U2MB7AE0.book Page 10 Thursday, January 29, 2015 3:42 PM

4-12
4
“DIFF LOCK” (four-wheel drive with the dif-
ferential gear locked): Power is supplied to
the rear and front wheels with the differen-
tial gear locked. Unlike the “4WD” mode, all
wheels turn at the same speed regardless
of traction.EBU33191Horn switch“ ”Press the switch to sound the horn.
EBU31410Accelerator pedalPress the accelerator pedal down to increase
engine speed. Spring tension returns the ped-
al to the rest position when released. Always
check that the accelerator pedal returns nor-
mally before starting the engine.EBU31420Brake pedalPress the brake pedal to slow or stop the ve-
hicle.
1. Horn switch “ ”
1
1. Accelerator pedal
1
U2MB7AE0.book Page 12 Thursday, January 29, 2015 3:42 PM

5-1
5
EBU31570
FOR YOUR SAFETY – PRE-OPERATION CHECKS
EBU31580Inspect 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, 8-38, 8-41
Parking brake • Check for proper operation. 8-41
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, 8-14
U2MB7AE0.book Page 1 Thursday, January 29, 2015 3:42 PM

5-6
5
EBU31760CoolantCheck the coolant level in the coolant reser-
voir when the engine is cold (the coolant level
will vary with engine temperature).
The coolant level is satisfactory if it is be-
tween the minimum and maximum level
marks on the coolant reservoir. If the coolant
level is at or below the minimum level mark,
add additional coolant to bring the level up to
maximum level mark. If coolant is not avail-
able, add distilled water. Change the coolant
every two years. (See page 8-24.)NOTICEECB02120Hard water or salt water is harmful to the
engine. You may use soft water if you can-
not get distilled water.
EBU31770Final gear oilMake sure the final gear oil is at the specified
level. Add oil as necessary. (See page 8-20
for details.)
If desired, an SAE 80W-90 hypoid gear oil
may be used for all conditions.TIPGL-4 is a quality and additive rating; GL-5 or
GL-6 rated hypoid gear oils may also be used. EBU31780Differential gear oilMake sure the differential gear oil is at the
specified level. Add oil as necessary. (See
page 8-22 for details.)
Coolant reservoir capacity (up to the maxi-
mum level mark):0.28 L (0.30 US qt, 0.25 Imp.qt)
Recommended oil:SAE 80 API GL-4 Hypoid gear oil
Recommended oil: SAE 80 API GL-4 Hypoid gear oil
U2MB7AE0.book Page 6 Thursday, January 29, 2015 3:42 PM