Page 8 of 224

Axle boots .......................................... 8-36
Checking the spark plugs .................. 8-37
Air filter maintenance.......................... 8-38
Cleaning the air filter case check hoses ................................................ 8-42
Cleaning the spark arrester ................ 8-43
Valve clearance .................................. 8-45
Brakes ................................................ 8-45
Checking the front and rear brake pads.................................................. 8-45
Checking the parking brake pads ...... 8-46
Checking the brake and YCC-S
clutch fluid levels .............................. 8-46
Brake and YCC-S clutch fluid
replacement...................................... 8-48
YCC-S clutch ..................................... 8-48
Checking the brake pedal .................. 8-49
Checking the accelerator pedal ......... 8-49
Parking brake lever free play adjustment........................................ 8-50
Brake light switch ............................... 8-51
Cable inspection and lubrication........ 8-51
Pedal lubrication................................. 8-52 Checking the stabilizer bushes...........8-52
Upper and lower arm pivot
lubrication (left and right) ..................8-53
Rear knuckle upper and lower pivot lubrication (left and right) ..................8-54
Drive shaft universal joint lubrication .........................................8-54
Steering shaft lubrication....................8-54
Wheel removal ....................................8-55
Checking and tightening the bead lock (YXZ10YESJ) .............................8-55
Tire replacement .................................8-56
Wheel installation................................8-57
Battery ................................................8-57
Jump-starting .....................................8-61
Fuse replacement ...............................8-63
Headlights...........................................8-65
Headlight beam adjustment ...............8-65
Tail/brake light ....................................8-66
Interior lights (for equipped models) ...8-66
Troubleshooting ..................................8-66
Troubleshooting charts .......................8-68
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3-2
3
EBU31190Right view
12,3 78
4
5,6
9
1. Rear shock absorber
2. Engine oil tank
3. Air filter
4. Passenger seat belt
5. Battery
6. Fuses
7. Coolant reservoir
8. Headlight
9. Fuel tank capUB0F7AE0.book Page 2 Monday, November 6, 2017 2:30 PM
Page 138 of 224

7-21
7
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.NOTICEECB02950After 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. 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. 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 theUB0F7AE0.book Page 21 Monday, November 6, 2017 2:30 PM
Page 145 of 224
8-6
8
EBU35801General maintenance and lubrication chartNO. ITEMROUTINE INITIAL
EVERY
Whichev- er comes first month 1 3 6 6 12
km
(mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320
1 *Cooling system • Check coolant leakage.
• Repair if necessary.
√√√√√
• Change coolant. Every 2 years
2 Primary air filter
(foam)
•Clean.
• Replace if necessary. Every 300–600 km (200–400 mi)
(more often in wet or dusty condi-
tions)
* Secondary air fil-
ter (paper)
• Replace. Every 2000–5000 km (1200–3000
mi)
(more often in wet or dusty condi-
tions)
3Engine oil • Change (warm engine before draining). √√√√
4 Engine oil filter
cartridge • Replace.
√√√
5 Transmission oil • Check oil level and for leakage.
√√√√√
• Change. √√√√
6 Final gear oil • Check oil level.
√√√√√
• Change. √√
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8-38
8
Clean the surface of the spark plug gasket
and its mating surface, and then wipe off any
grime from the spark plug threads.TIPIf a torque wrench is not available when in-
stalling the spark plug, a good estimate of the
correct torque is 1/4–1/2 turn past finger tight.
However, the spark plug should be tightened
to the specified torque as soon as possible. NOTICEECB02900Do not use any tools to remove or install
the spark plug cap, otherwise the ignition
coil coupler may be damaged. The spark
plug cap may be difficult to remove be- cause the rubber seal on the end of the cap
fits tightly. To remove the spark plug cap,
simply twist it back and forth while pulling
it out; to install it, twist it back and forth
while pushing it in.
EBU35423Air filter maintenanceThis model is equipped with two air filter ele-
ments, a primary foam-type air filter and a
secondary paper-type air filter.
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Tightening torque: Spark plug:13 N·m (1.3 kgf·m, 9.6 lb·ft)
1. Primary air filter
2. Secondary air filter
1
2
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8-39
8
The primary air filter is easily accessed and
should be cleaned and oiled every 300–600
km (200–400 mi).
The secondary air filter is more difficult to ac-
cess, cannot be cleaned, and should be re-
placed by a Yamaha dealer every 2000–5000
km (1200–3000 mi).TIPService the air filters more frequently when
operating in wet or dusy environments. Whenever air filter maintenance is performed:
check the air inlet for obstructions and the
air filter case for dirt and foreign matter.
check the air filter case check hoses for dirt
or water and clean as necessary.
check the air filter cas e joints and the rub-
ber joints to and from the throttle body for
proper fit and sealing.
tighten all fittings securely to avoid the pos-
sibility of unfiltered air entering the engine.
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. Clean the primary air filter as follows.
1. Remove panel C (page 8-11).
2. Remove the air filter case cover by turn- ing the air filter case cover lock counter-
clockwise.TIPMake sure that the match mark on the cover
lock is aligned with the open match mark on
the air filter case cover.
UB0F7AE0.book Page 39 Monday, November 6, 2017 2:30 PM
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8-40
8
3. Remove the foam air filter.4. Remove the foam air filter element from
the air filter frame.1. Air filter case cover
2. Air filter case cover lock
3. Match mark
2 1
3
1. Foam air filter
1
UB0F7AE0.book Page 40 Monday, November 6, 2017 2:30 PM
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8-41
8
5. Wash the foam material gently but thor-oughly in parts cleaning solvent.
WARNING! Using gasoline or other flammable solvents to clean the air fil-
ter element can cause a fire or explo-
sion, which could lead to serious
injury.
[EWB03360]
6. Squeeze out the excess solvent. NOTICE: Do not twist the foam materi-
al when squeezing it.
[ECB02970]
7. Wash the foam material in warm soapy water to remove remaining solvent, then
rinse thoroughly with plain warm water.
8. Squeeze out the excess water. NOTICE:
Do not twist the foam material when
squeezing it.
[ECB02970]
9. Allow the foam air filter to dry thoroughly. Inspect for wear and tear and replace if
damaged or heavily worn.
1. Foam air filter element
2. Air filter frame
1
2
UB0F7AE0.book Page 41 Monday, November 6, 2017 2:30 PM