warning YAMAHA WOLVERINE 2018 Owner's Manual

4-10
4
(empty) as the fuel level decreases. When the
“E” segment disappears and the “ ” icon
flashes, refuel as soon as possible.TIPIf the electrical circuit for the fuel gauge is not
working correctly, all display segments
and “ ” will flash repeatedly. Have a Yamaha
dealer check the vehicle. Error code display 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 will
come on or flash, and the display will indicate
an error code.
If the display indicates an error code, note the
code number and 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.
1. Error code display
2. Engine trouble warning light “ ”
2
1
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4-15
4
EBU33461SeatsTo remove a seat cushion, lift the front of the
cushion, and then pull the cushion off. To install a seat cush
ion, insert the projec-
tions on the rear of the seat cushion under the
seat frame, and then insert the projection on
the front of the cushion into the grommet
while pushing the cushion downward. Make
sure the seats are properly secured before
starting off. WARNING! A loose seat could
cause the operator to lose control, or cau-
se the operator or passenger to fall.
[EWB03510]
1. Door
2. Latch
2
1
1. Seat cushion
1
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4-20
4
EBU31520Cup holdersBe sure to tightly close the cap of any plastic
bottle before placing it in a cup holder.
Some plastic bottles may not fit into the cup
holders depending on their size and shape.
WARNING
EWB03240Never ride with any open or glass con-
tainers in the cup holders; otherwise, the
contents may spill and the glass contain-
ers may be thrown about and break, and
possibly injure people in the vehicle dur-
ing sudden braking or an accident.
 Do not place any other items than seal-
able plastic containers in the cup hold-
ers; otherwise, they may be thrown about and possibly injure people in the
vehicle during sudden braking or an ac-
cident.
EBU33630Cargo bed
WARNING
EWB03250
Never carry passengers in the cargo
bed.
Maximum load limit:
Storage compartment between the driver
seat and the passenger seat:6.4 kg (13.5 lb)
1. Cup holder
1
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WARNING
EWB02492Suspension components become hot
during operation. Never touch the com-
pression damping force adjusting bolt
and screw, the rebound damping force
adjusting screw or the oil reservoir with
your bare hand or skin until suspension
components have cooled.
 Always adjust the shock absorber as-
semblies on the left and right side to the
same setting. Uneven adjustment can
cause poor handling and loss of stability,
which could lead to an accident. NOTICEECB00091Never turn an adjusting mechanism be-
yond the minimum and maximum settings. TIPAlthough the total number of clicks or turns of
a damping force adjusting mechanism may
not exactly match the following specifications due to small differences in production, the ac-
tual number of clicks or turns always repre-
sents the entire adjusting range. To obtain a
precise adjustment, it would be advisable to
check the number of clicks or turns of each
damping force adjusting mechanism and to
modify the specifications as necessary.
Spring preload
1. Loosen the locknut.
2. Turn the spring preload adjusting nut in direction (a) to increase the spring pre-
load and thereby harden the suspension,
and in direction (b) to decrease the spring
preload and thereby soften the suspen-
sion.
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4-27
4
WARNING
EWB00411These shock absorber assemblies contain
highly pressurized nitrogen gas. Read and
understand the following information be-
fore handling the shock absorber assem-
blies.
Do not tamper with or attempt to open
the cylinder assemblies.
 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.
EBU33623Rear shock absorbersThe rear shock absorber assemblies are
equipped with a spring preload adjusting nut,
a rebound damping force adjusting screw, a
fast compression damping force adjusting
bolt, and a slow compression damping force
adjusting screw.
WARNING
EWB02492 Suspension components become hot
during operation. Never touch the com-
pression damping force adjusting bolt
and screw, the rebound damping force
Slow compression damping force settings:
Minimum (soft):18 click(s) in direction (b)*
Standard: 12 click(s) in direction (b)*
Maximum (hard): 1 click(s) in direction (b)*
* With the adjusting screw fully turned in di- rection (a)
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4
WARNING
EWB03500These shock absorber assemblies contain
highly pressurized nitrogen gas. Read and
understand the following information be-
fore handling the shock absorber assem-
blies.
 Do not tamper with or attempt to open
the cylinder assemblies.
 Do not subject the shock absorber as-
sembly 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.
EBU31552Trailer hitch bracket and receiver
Slow compression damping force settings: Minimum (soft):18 click(s) in direction (b)*
Standard: 12 click(s) in direction (b)*
Maximum (hard): 1 click(s) in direction (b)*
* With the adjusting screw fully turned in di- rection (a)
1. Trailer hitch bracket
2. Receiver
1
2
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5-1
5
EBU31574
FOR YOUR SAFETY – PRE-OPERATION CHECKS
EBU31584Before starting off, inspect the vehicle to make sure it is in safe operating condition. Use the fol-
lowing checklist and related information as a guide. Also, follow the service intervals in the peri-
odic maintenance chart to keep the vehicle in safe operating condition.
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. Pre-operation checklist
ITEM ROUTINE PAGE
Brakes • Check operation, free play, fluid level, and fluid leakage.
• Fill with DOT 4 brake fluid if necessary. 5-3, 8-39, 8-42
Parking brake • Check for proper operation. 8-42
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
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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.
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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
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5-8
5
EBU31840Instruments, lights and switchesCheck that all instruments, lights and switch-
es are working properly. Correct if necessary.EBU31851Control cablesWhen driving in cold weather, always make
sure all control cables work smoothly before
starting off. WARNING! Control cables can
freeze in cold weather and you could be
unable to control the vehicle.
[EWB03280]
EBU33481
TiresCheck tire pressure regularly to make sure it
is at the recommended specifications. Also
check for wear and damage.
Tire pressure
Use the tire pressure gauge to check and ad-
just tire pressures when the tires are cold. Tire
pressures must be equal on both sides.
WARNING! Operation of this vehicle with improper tire pressure may cause severe injury or death from loss of control or roll-
over. Tire pressure below the minimum
specified could also cause the tire to dis-
lodge from the rim under severe driving
conditions.
[EWB04120]
Set tire pressures to the following specifica-
tions:
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