
5-2
5
Front brake• Check operation. If soft or spongy, have Yamaha dealer bleed hy-
draulic system.
• Check brake pads for wear, and replace if necessary.
• Check brake fluid level in reservoir, and add specified brake fluid to specified level if necessary.
• Check hydraulic system for leakage. Correct if necessary. 5-3, 8-43, 8-44, 8-46
Rear brake • Check operation. If soft or spongy, have Yamaha dealer bleed hy-
draulic system.
• Check pedal free play, and adjust if necessary.
• Check brake pads for wear, and replace if necessary.
• Check brake fluid level in reservoir, and add specified brake fluid to specified level if necessary.
• Check hydraulic system for leakage. Correct if necessary. 5-3, 8-43, 8-44, 8-46,
8-47
Throttle lever • Make sure that operation is smooth. Lubricate cable and lever
housing if necessary.
• Check lever free play, and adjust if necessary. 5-4, 8-42
Control cables • Make sure that operation is smooth. Lubricate if necessary. 8-49
Wheels and tires • Check wheel condition, and replace if damaged.
• Check tire condition and tread depth. Replace if necessary.
• Check air pressure. Correct if necessary. 5-4
Brake pedal • Make sure that operation is smooth. Lubricate pedal pivoting point
if necessary. 8-50
Brake levers • Make sure that operation is smooth. Lubricate lever pivoting points
if necessary. 8-49
Axle boots • Check for cracks or damage, and replace if necessary. 8-48
Chassis fasteners • Make sure that all nuts, bolts and screws are properly tightened. 5-8
Instruments, lights and
switches • Check operation, and correct if necessary.
5-8
ITEM
ROUTINE PAGEUB4F60E0.book Page 2 Wednesday, April 25, 2018 11:52 AM

5-8
5Aftermarket tires and rims
The tires and rims that came with your ATV were
designed to match the performance capabilities
and to provide the best combination of handling,
braking, and comfort. Other tires, rims, sizes, and
combinations may not be appropriate.
EBU19841Chassis fastenersMake sure that all nuts, bolts and screws are
properly tightened.EBU19851Instruments, lights and switchesCheck that all instruments, lights and switches are
working properly. Correct if necessary.UB4F60E0.book Page 8 Wednesday, April 25, 2018 11:52 AM

8-8
8
EBU23072TIPSome maintenance items need more frequent service if you are riding in unusually wet, dusty, sandy or
muddy areas, or at full-throttle.21 Final gear oil • Change.
• Check ATV for oil leakage, and correct if neces-
sary. √√
22 Cooling system • Check coolant level and ATV for coolant leakage,
and correct if necessary. √√√√√
• Replace coolant. Every 2 years
23 *Moving parts and
cables • Lubricate.
√√√√
24 *Throttle lever • Check operation.
• Check throttle lever free play, and adjust if neces-
sary.
• Lubricate cable and lever housing. √√√√√
25 *Front and rear
brake switches • Check operation and correct if necessary.
√√√√√
26 *Lights and switches • Check operation and correct if necessary.
• Adjust headlight beams. √√√√√
NO.
ITEM CHECK OR MAINTENANCE
JOB INITIAL
EVERY
Whichev-
er comes first month136612
km (mi) 240
(150) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320UB4F60E0.book Page 8 Wednesday, April 25, 2018 11:52 AM

8-58
84. Turn on the main switch and start the engine.
5. If the fuse immediately blows again, have aYamaha dealer check the vehicle.
EBU34712Replacing a headlight bulbLeft and right headlights
This model is equipped with LED-type headlights.
If a headlight does not come on, have a Yamaha
dealer check the vehicle and replace the headlight
if necessary.
Handlebar-mounted light
If the handlebar-mounted light bulb burns out, re-
place it with the specified bulb as follows.1. Remove the handlebar-mounted light cover by removing the quick fasteners.
Specified fuses:
Main fuse:40.0 A
Headlight fuse: 10.0 A
Ignition fuse: 10.0 A
Four-wheel-drive motor fuse: 10.0 A
Signaling system fuse: 10.0 A
Auxiliary DC jack fuse: 10.0 A
Radiator fan motor fuse: 20.0 A
Fuel injection system fuse: 15.0 A
EPS fuse: 40.0 A1. Handlebar-mounted light cover
2. Quick fastener
1
2
2
UB4F60E0.book Page 58 Wednesday, April 25, 2018 11:52 AM

8-61
8
EBU26922Brake/tail lightThis model is equipped with an LED type of
brake/tail light.
If the brake/tail light does not come on, have a
Yamaha dealer check it.EBU25653Removing a wheel1. Park the ATV on a level surface.
2. Loosen the wheel nuts.
3. Elevate the ATV and place a suitable stand under the frame.
4. Remove the nuts from the wheel.
5. Remove the wheel.
1. Handlebar-mounted light beam adjusting screw
1. Adjusting screw (left and right headlights)
(b)
(a)
1
(b)
(a)
1
1. Wheel nut
1
1
UB4F60E0.book Page 61 Wednesday, April 25, 2018 11:52 AM

8-63
8
EBU25741TroubleshootingAlthough Yamaha ATVs receive a thorough in-
spection before shipment from the factory, trouble
may occur during operation. Any problem in the
fuel, compression, or ignition systems, for exam-
ple, can cause poor starting and loss of power.
The following troubleshooting charts represent
quick and easy procedures for checking these vi-
tal systems yourself. However, should your ATV
require any repair, take it to a Yamaha dealer,
whose skilled technicians have the necessary
tools, experience, and know-how to service the
ATV properly.
Use only genuine Yamaha replacement parts. Im-
itation parts may look like Yamaha parts, but they
are often inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWB02281Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-
lot lights from water heaters or furnaces. UB4F60E0.book Page 63 Wednesday, April 25, 2018 11:52 AM

10-5
10
Brake fluid:Specified brake fluid:DOT 4Front suspension:Type:Double wishbone
Spring: Coil spring
Shock absorber:
Hydraulic damper
Wheel travel: 193 mm (7.6 in)Rear suspension:Type:
Double wishbone
Spring: Coil spring
Shock absorber: Hydraulic damper
Wheel travel:
232 mm (9.1 in)Electrical system:System voltage:12 V
Ignition system:
TCI
Charging system: AC magnetoBattery:Model:
YTX20L-BS Voltage, capacity:
12 V, 18.0 Ah
Lights:Headlight:
LED
Handlebar-mounted light: T15H, 35.0 W/36.5 W
Brake/tail light: LED
Meter lighting:
LED
Neutral indicator light: LED
High beam indicator light: LED
Reverse indicator light:
LED
Coolant temperature warning light: LED
Park indicator light: LED
Engine trouble warning light:
LED
High-range indicator light: LED
Low-range indicator light: LED
Differential gear lock indicator light:
LED
EPS warning light: LED
UB4F60E0.book Page 5 Wednesday, April 25, 2018 11:52 AM

12-1
12
INDEX
AAccessories and loading ................................................ 6-5
Accessories, DC jack ................................................... 4-27
Air filter element, cleaning ........................................... 8-37
Axle boots .................................................................... 8-48BBattery ......................................................................... 8-52
Battery voltage warning light ......................................... 4-3
Brake fluid, changing ................................................... 8-45
Brake fluid level, checking ........................................... 8-44
Brake lever, front ......................................................... 4-16
Brake levers, checking and lubricating ........................ 8-49
Brake pads, checking the front and rear ..................... 8-43
Brake pedal and rear brake lever ................................. 4-16
Brake pedal, checking and lubricating ........................ 8-50
Brake pedal free play, adjusting .................................. 8-47
Brakes .......................................................................... 8-42
Brakes, front and rear .................................................... 5-3
Brake/tail light .............................................................. 8-61CCables, checking and lubricating ................................ 8-49
Carrier, front ................................................................. 4-25
Carrier, rear .................................................................. 4-25
Chassis fasteners .......................................................... 5-8
Cleaning ......................................................................... 9-1
Coolant .................................................................5-3, 8-29
Coolant temperature warning light ................................ 4-3DDifferential gear oil ................................................5-3, 8-27Drive select lever ......................................................... 4-17
Drive select lever and driving in reverse ........................ 6-2
EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge .................................. 8-20
Engine stop switch ...................................................... 4-11
Engine trouble warning light .......................................... 4-3
EPS warning light .......................................................... 4-4FFinal gear oil ......................................................... 5-3, 8-25
Four-wheel drive/differential gear lock icon .................. 4-4
Four-wheel drive switch (On-Command 4WD) ............ 4-12
Front and rear brake lever free play, checking ............ 8-46
Fuel ....................................................................... 4-19, 5-3
Fuel tank cap ............................................................... 4-18
Fuses, replacing .......................................................... 8-56HHandlebar switches ..................................................... 4-10
Headlight beam, adjusting ........................................... 8-60
Headlight bulb, replacing ............................................. 8-58
High beam indicator light ............................................... 4-2
High-range indicator light .............................................. 4-2
Horn switch .................................................................. 4-11IIdentification numbers ................................................. 11-1
Indicator lights and warning lights ................................. 4-2
Instruments, lights and switches ................................... 5-8
UB4F60E0.book Page 1 Wednesday, April 25, 2018 11:52 AM