7-18
7
Always follow proper procedures as de-
scribed in the Owner’s Manual.
Avoid hills with excessively slippery or loose
surfaces.
Avoid crossing the side of a steep hill.
Shift your weight to the uphill side of the ATV.
Never attempt to turn the ATV around on any
hill until you have mastered the turning tech-
nique as described in the Owner’s Manual on
level ground. Be very careful when turning
on any hill.
Traversing a sloping surface on your ATV requires
you to properly position your weight to maintain
proper balance. Be sure that you have learned the
basic riding skills on flat ground before attempting
to cross a sloping surface. Avoid slopes with slip-
pery surfaces or rough terrain that may upset your
balance.
As you travel across a slope, lean your body in the
uphill direction. It may be necessary to correct the
steering when riding on loose surfaces by pointing
the front wheels slightly uphill. When riding on
slopes, be sure not to make sharp turns either up
or down hill. If your ATV does begin to tip over, gradually steer
in the downhill direction if there are no obstacles
in your path. As you regain proper balance, grad-
ually steer again in the direction you wish to travel.
CROSSING THROUGH SHALLOW WATER
WARNING
EWB01642Operating this vehicle through deep or fast-
flowing water can lead to loss of control or an
overturn. To reduce your risk of drowning or
other injuries, use care when crossing through
water. Never operate this ATV water deeper
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8-58
8
NOTICEECB00641To prevent accidental short-circuiting, turn off
the main switch when checking or replacing a
fuse. 1. Turn off all electrical systems. (See page 4-1.)
2. Remove panel A. (See page 8-9.)
3. Remove the blown fuse, and then install anew fuse of the specified amperage.
WARNING! Always use a fuse of the spec-
ified rating, and never use a substitute ob-
ject in place of the proper fuse. An
improper fuse or a substitute object can
cause damage to the electrical system,
which could lead to a fire.
[EWB02173]
Specified fuses:Main fuse:40.0 A
Headlight fuse: 10.0 A (YFM70KDHK, YFM70KDXK)
15.0 A (YFM70KPSK, YFM70KPLK,
YFM70KPAK, YFM70KPHK,
YFM70KPXK)
Ignition fuse: 10.0 A
Four-wheel-drive motor fuse: 10.0 A (YFM70KPSK, YFM70KPLK,
YFM70KPAK, YFM70KPHK,
YFM70KPXK)
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 A (YFM70KPSK, YFM70KPLK,
YFM70KPAK, YFM70KPHK,
YFM70KPXK)
UB5K60E0.book Page 58 Monday, May 28, 2018 11:35 AM
8-65
8
2. Lower the ATV to the ground.
3. Tighten the wheel nuts to the specified
torques.
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.
1. Tapered nutTightening torques:Front wheel nut:55 N·m (5.5 kgf·m, 41 lb·ft)
Rear wheel nut: 55 N·m (5.5 kgf·m, 41 lb·ft)1
UB5K60E0.book Page 65 Monday, May 28, 2018 11:35 AM
10-5
10
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 AhLights:Headlight:T19L, 30.0 W/30.0 W
Handlebar-mounted light:
T15H, 35.0 W/36.5 W (YFM70KPSK, YFM70KPLK,
YFM70KPAK, YFM70KPHK, YFM70KPXK)
Brake/tail light:
21.0 W/5.0 W
Meter lighting: LED (YFM70KPSK, YFM70KPLK, YFM70KPAK,
YFM70KPHK, YFM70KPXK)
Neutral indicator light: LED
High beam indicator light: LED (YFM70KPSK, YFM70KPLK, YFM70KPAK,
YFM70KPHK, YFM70KPXK) Fuel level warning light:
LED (YFM70KDHK, YFM70KDXK)
Reverse indicator light: LED
Coolant temperature warning light:
LED
Park indicator light: LED
Four-wheel-drive indicator light: 1.7 W (YFM70KDHK, YFM70KDXK)
Engine trouble warning light:
LED
High-range indicator light: LED (YFM70KPSK, YFM70KPLK, YFM70KPAK,
YFM70KPHK, YFM70KPXK)
Low-range indicator light: LED (YFM70KPSK, YFM70KPLK, YFM70KPAK,
YFM70KPHK, YFM70KPXK)
Differential gear lock indicator light: LED (YFM70KPSK, YFM70KPLK, YFM70KPAK,
YFM70KPHK, YFM70KPXK)
EPS warning light: LED (YFM70KPSK, YFM70KPLK, YFM70KPAK,
YFM70KPHK, YFM70KPXK)
Battery voltage warning light: LED (YFM70KPSK, YFM70KPLK, YFM70KPAK,
YFM70KPHK, YFM70KPXK)
Fuses:Main fuse:40.0 A
UB5K60E0.book Page 5 Monday, May 28, 2018 11:35 AM
12-1
12
INDEX
AAccessories and loading ................................................ 6-5
Accessories, DC jack ................................................... 4-29
Air filter element, cleaning ........................................... 8-36
Axle boots .................................................................... 8-47BBattery ......................................................................... 8-53
Battery voltage warning light ......................................... 4-3
Brake fluid, changing ................................................... 8-44
Brake fluid level, checking ........................................... 8-43
Brake lever free play, checking the front ..................... 8-44
Brake lever, front ......................................................... 4-19
Brake levers, checking and lubricating ........................ 8-49
Brake light switches ..................................................... 8-48
Brake pads and friction plates, checking .................... 8-42
Brake pedal and rear brake lever ................................. 4-20
Brake pedal, checking and lubricating ........................ 8-50
Brakes .......................................................................... 8-41
Brakes, front and rear .................................................... 5-3
Brake/tail light bulb, replacing ..................................... 8-63CCables, checking and lubricating ................................ 8-48
Carrier, front ................................................................. 4-26
Carrier, rear .................................................................. 4-26
Chassis fasteners .......................................................... 5-7
Cleaning ......................................................................... 9-1
Coolant .................................................................5-3, 8-28
Coolant temperature warning light ................................ 4-3
DDifferential gear lock, indicators (YFM70KPXK / YFM70KPAK / YFM70KPHK / YFM70KPSK /
YFM70KPLK) ............................................................... 4-6
Differential gear oil ................................................5-3, 8-26
Drive lever 2WD/4WD (YFM70KDXK / YFM70KDHK) ............................................................ 4-17
Drive select lever ......................................................... 4-21
Drive select lever and driving in reverse ........................ 6-2EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge .................................. 8-19
Engine stop switch ...................................................... 4-13
Engine trouble warning light .......................................... 4-4
EPS warning light (for EPS model) ................................ 4-5FFinal gear oil ......................................................... 5-3, 8-24
Four-wheel drive icon (YFM70KPXK / YFM70KPAK / YFM70KPHK / YFM70KPSK / YFM70KPLK) .............. 4-6
Four-wheel drive indicator light (YFM70KDXK / YFM70KDHK) .............................................................. 4-5
Four-wheel drive switch (On-Command 4WD)
(YFM70KPXK / YFM70KPAK / YFM70KPHK /
YFM70KPSK / YFM70KPLK) ..................................... 4-15
Fuel ....................................................................... 4-22, 5-3
Fuel level warning light (YFM70KDXK / YFM70KDHK) .............................................................. 4-4
Fuel tank cap ............................................................... 4-21
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12-2
12
Fuses, replacing ........................................................... 8-56HHandlebar switches ..................................................... 4-12
Headlight beam, adjusting ........................................... 8-62
Headlight bulb, replacing ............................................. 8-59
High beam indicator light ............................................... 4-3
High-range indicator light (YFM70KPXK / YFM70KPAK / YFM70KPHK / YFM70KPSK /
YFM70KPLK) ............................................................... 4-2
Horn switch .................................................................. 4-14IIdentification numbers ................................................. 11-1
Indicator lights and warning lights ................................. 4-1
Instruments, lights and switches ................................... 5-7LLabel locations ............................................................... 1-1
Light switch .................................................................. 4-14
Low-range indicator light (YFM70KPXK / YFM70KPAK / YFM70KPHK / YFM70KPSK /
YFM70KPLK) ............................................................... 4-2MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................8-5
Maintenance chart, emission control system ................ 8-3
Model label ................................................................... 11-1
Multi-function display .....................................................4-6NNeutral indicator light .....................................................4-2
OOn-Command drive switch “4WD/LOCK” (YFM70KPXK / YFM70KPAK / YFM70KPHK /
YFM70KPSK / YFM70KPLK) ..................................... 4-16
Override switch (YFM70KPXK / YFM70KPAK / YFM70KPHK / YFM70KPSK / YFM70KPLK) ............. 4-14
Owner’s Manual and tool kit .......................................... 8-2PPanels, removing and installing ..................................... 8-9
Park indicator light ......................................................... 4-3
Parking ........................................................................... 6-4
Parking on a slope ......................................................... 6-5
Part locations ................................................................. 3-1RRear brake, adjusting the lever, pedal free play .......... 8-44
Rear knuckle pivots, lubricating ................................... 8-51
Reverse indicator light ................................................... 4-2
Riding your ATV ............................................................. 7-1SSafety information .......................................................... 2-1
Seat .............................................................................. 4-24
Shock absorber assemblies, adjusting the front and
rear (YFM70KPXK / YFM70KPAK / YFM70KPHK /
YFM70KPSK / YFM70KPLK) ..................................... 4-26
Spark arrester, cleaning ............................................... 8-39
Spark plug, checking ................................................... 8-17
Specifications .............................................................. 10-1
Speed limiter ................................................................ 4-19
Stabilizer bushes, checking ......................................... 8-51
Starting the engine ......................................................... 6-1
Start switch .................................................................. 4-14
UB5K60E0.book Page 2 Monday, May 28, 2018 11:35 AM