brake YAMAHA WOLVERINE 2018 Owner's Manual

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Pavement
This vehicle is designed for off-road use only.
Avoid paved surfaces. Turn gradually and go
slowly if you must drive on pavement.
Water
If you must cross shallow, slow-moving water
up to the depth of the vehicle’s floorboard,
choose your path carefully to avoid sharp
drop-offs, large rocks, or slippery surfaces
that could cause the vehicle to overturn. Nev-
er operate through water deeper than 37 cm
(15 in) or fast-flowing water. Choose a path
where both your entrance into and exit point
from the water is a gradual incline. Determine
the water depth and currents before crossing.
Operating this vehicle through deep or fast-
flowing water can lead to loss of control or
overturn. To reduce your risk of drowning or
other injuries, use care when crossing
through water.Wet brakes may have reduced effectiveness.
After leaving the water, test the brakes. If nec-
essary, apply the brakes several times to let
friction dry them out.
NOTICEECB02170After driving your vehicle in water, be sure
to drain the trapped water by removing the
check hoses at the bottom of the air filter
case and air duct and the V-belt case drain
plug. Wash the vehicle in fresh water if it
has been operated in salt water or muddy
conditions. Loose terrain/slippery terrain
When driving on slippery terrain, including
wet, muddy, or icy conditions, as well as
loose gravel, be aware that you could begin
skidding or sliding. To avoid loss of control,
slow down and put the vehicle in four-wheel
drive before driving on a slippery surface and
plan your path to avoid making abrupt ma-
neuvers.
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If you feel the vehicle begin to slide sideways
or fishtail (rear-wheel sliding), steer into the di-
rection of the slide if possible, to regain direc-
tional control. For example, if you feel the
back of the vehicle start to slide to your right,
steer to the right.
Brush or wooded areas
When operating in areas with brush or trees,
watch carefully on both sides and above the
vehicle for obstacles such as branches that
the vehicle might hit, causing an accident.
Watch for brush that might enter the vehicle
as you pass and strike you or the passenger.
Never hold onto the cage/frame. The passen-
ger should always hold onto the passenger
handhold with both hands.
The muffler and other engine parts become
extremely hot during operation and remain
hot after the engine has stopped. To reduce
the risk of fire during operation or after leaving
the vehicle, do not let brush, grass and other
materials collect under the vehicle, near the muffler or exhaust pipe, or next to other hot
parts. Check under the vehicle after operating
in areas where combustible materials may
have collected. Do not idle or park the vehicle
in long dry grass or other dry ground cover.
Encountering obstacles
If you cannot go around an obstacle, such as
a fallen tree or a ditch, stop the vehicle where
it is safe to do so. Set the parking brake and
get out to inspect the area thoroughly. Look
from both your approach side and exit side. If
you believe you can continue safely, choose
the path that will allow you to get over the ob-
stacle and at as close to a right angle as pos-
sible to minimize vehicle tipping. Go only fast
enough to maintain your momentum but still
give yourself plenty of time to react to chang-
es in conditions.UB3D7AE0.book Page 21 Tuesday, November 7, 2017 9:38 AM

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EBU32005PERIODIC MAINTENANCE AND ADJUSTMENTEBU32010Periodic inspection, adjustment, and lubrica-
tion will keep your vehicle in the safest and
most efficient condition possible. Safety is an
obligation of the vehicle owner/operator. The
most important points of vehicle inspection,
adjustment, and lubrication are explained on
the following pages.
WARNING
EWB01842Failure to properly maintain the vehicle or
performing maintenance activities incor-
rectly may increase your risk of injury or
death during service or while using the ve-
hicle. If you are not familiar with vehicle
service, have a Yamaha dealer perform the
service.
WARNING
EWB02563Turn off the engine when performing main-
tenance unless otherwise specified.
A running engine has moving parts that
can catch on body parts or clothing and
electrical parts that can cause shocks or
fires.
 Running the engine while servicing can
lead to eye injury, burns, fire, or carbon
monoxide poisoning - possibly leading
to death. See page 2-5 for more informa-
tion about carbon monoxide.
WARNING
EWB02691Brake discs, calipers, drums, and linings
can become very hot during use. To avoid
possible burns, let brake components cool
before touching them.
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EBU32114General maintenance and lubricationNO. ITEMROUTINE INITIAL
EVERY
Whichev- er comes first month 1 3 6 6 12
km
(mi) 320
(200) 1200
(750) 2400
(1500) 2400
(1500) 4800
(3000)
hours 20 75 150 150 300
1 *Cooling system • Check coolant leakage.
• Repair if necessary.
√√√√√
• Change coolant. Every 2 years
2 Air filter element •Clean.
• Replace if necessary. Every 20–40 hours (more often in
wet or dusty areas)
3Engine oil • Change (warm engine before draining). √√√√
4 Engine oil filter
cartridge • Replace.
√√√
5 Final gear oil • Check oil level.
√√√√√
• Change. √√
6 Differential gear
oil • Check oil level.
√√√√√
• Change. √√
7 *Front brake • Check operation/brake pad wear/fluid leak-
age.
• Correct if necessary. Replace pads if worn to the limit. √√√√√
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8*Rear brake • Check operation/brake pad wear/fluid leak-
age.
• Correct if necessary. Replace pads if worn to the limit. √√√√√
9 *Parking brake • Check operation and adjust if necessary. √√√√√
10 *Brake fluid • Change. Every 2 years
11 *Accelerator pedal • Check operation and free play. √√√√√
12 *V-b e l t • Check operation.
• Check for wear, cracks, or damage. √√
√
13 *Wheels • Check balance, runout and for damage.
• Replace if necessary. √ √√√
14 *Wheel bearings • Check bearing assemblies for loose-
ness/damage.
• Replace if damaged. √ √√√
15 *Front and rear
suspension • Check operation and for oil leakage.
• Correct if necessary.
√√
16 *Steering system • Check operation and for looseness. Replace
if damaged.
• Check toe-in. Adjust if necessary. √√√√√
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 300UB3D7AE0.book Page 7 Tuesday, November 7, 2017 9:38 AM

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Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinder and calipers,
and change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged. UB3D7AE0.book Page 9 Tuesday, November 7, 2017 9:38 AM

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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 8-45, 8-47 for wheel
removal and installation procedures.)
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EBU32501Checking the brake fluid levelBefore starting off, check that the brake fluid
is above the minimum level mark. Check the
brake fluid level with the top of the reservoir
level. Replenish the brake fluid if necessary.
WARNING
EWB02721Improper maintenance can result in loss of
braking ability. Observe these precau-
tions:
Insufficient brake fluid may allow air to
enter the brake system, reducing brak-
ing performance.
1. Brake pad wear indicator groove
1
1. Minimum level markSpecified brake fluid: DOT 4
1
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Clean the filler cap before removing. Use
only DOT 4 brake fluid from a sealed
container.
 Use only the specified brake fluid; other-
wise, the rubber seals may deteriorate,
causing leakage.
 Refill with the same type of brake fluid.
Adding a brake fluid other than DOT 4
may result in a harmful chemical reac-
tion.
 Be careful that water does not enter the
brake fluid reservoir when refilling. Wa-
ter will significantly lower the boiling
point of the fluid and may result in vapor
lock. NOTICEECB01161Brake fluid may damage painted surfaces
or plastic parts. Always clean up spilled
fluid immediately.
As the brake pads wear, it is normal for the
brake fluid level to gradually go down. A low
brake fluid level may indicate worn brake
pads and/or brake system leakage; therefore,
be sure to check the brake pads for wear and
the brake system for leakage. If the brake fluid
level goes down suddenly, have a Yamaha
dealer check and repair the vehicle before
any further operation.EBU32520Brake fluid replacementComplete fluid replacement should be done
only by trained Yamaha service personnel.
Have a Yamaha dealer replace the following
components during periodic maintenance or
when they are damaged or leaking.
Replace the oil seals every two years.
 Replace the brake hoses every four years.
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EBU32530Checking the brake pedalHave a Yamaha dealer check the brakes at
the intervals specified in the periodic mainte-
nance and lubrication chart. There should be
no free play in the brake pedal. The brakes
should operate smoothly and there should be
no brake drag. If the brakes feel soft or
spongy, this could indicate air in the brake
system. Have a Yamaha dealer check the
brake system if necessary.
EBU33710Parking brakePull the parking brake lever rearward com-
pletely. If the parking brake lever clicks eight
times or more, have a Yamaha dealer adjust
the parking brake because the braking force
of the parking brake is weak. In addition, have
a Yamaha dealer check and adjust the park-
ing brake at the intervals specified in the peri-
odic maintenance and lubrication chart.EBU32551Brake light switch adjustmentThe brake light switch, which is activated by
the brake pedal, is properly adjusted when
the brake light comes on just before braking
takes effect.
1. Brake pedal
2. No brake pedal free play
1
2
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