8-60
84. Remove the burnt-out bulb.
5. Place a new bulb into position.
NOTICE: Do
not touch the glass part of the bulb. Oil
from your fingers or other contamination
will adversely affect the transparency of
the glass, luminosity of the bulb, and bulb
life. Thoroughly clean off any dirt and fin-
gerprints using a cloth moistened with al-
cohol or thinner.
[ECB00653]
6. Install the socket by pushing it in and turning it clockwise.
7. Install the bulb cover. NOTICE: Make sure
the bulb cover is securely fitted over the
socket and seated properly.
[ECB03320]
8. Install the handlebar-mounted light cover as shown, and then install the quick fasteners.
1. Socket
1
1. Do not touch the glass part of the bulb.
1
UB1A60E0.book Page 60 Wednesday, March 1, 2017 2:36 PM
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8
9. Adjust the handlebar-mounted light beam if
necessary.
EBU25553Adjusting a headlight beamNOTICEECB00691It is advisable to have a Yamaha dealer make
this adjustment. To raise a headlight beam, turn the headlight
beam adjusting screw in direction (a).
To lower a headlight beam, turn the adjusting
screw in direction (b).1. Handlebar-mounted light cover
1
1. Handlebar-mounted light beam adjusting screw
1. Adjusting screw (left and right headlights)
(b)
(a)
1
(b)
(a)
1
UB1A60E0.book Page 61 Wednesday, March 1, 2017 2:36 PM
8-62
8
EBU26921Tail/brake lightThis model is equipped with an LED type of
tail/brake light.
If the tail/brake light does not come on, have a
Yamaha dealer check it.EBU25652Removing a wheel1. Place 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.
EBU36243Installing a wheel1. Install the wheel with the arrow mark pointing in the forward rotating direction of the wheel,
and then install the wheel nuts.TIPFor YFM70GPXJ: be sure to install the nuts with
their tapered side towards the wheel.
1. Wheel nut
1
1
1. Arrow mark
2. Forward rotating direction
3. Wheel nut
1
3
3
2
UB1A60E0.book Page 62 Wednesday, March 1, 2017 2:36 PM
8-63
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
UB1A60E0.book Page 63 Wednesday, March 1, 2017 2:36 PM
10-4
10
Rear:27.0 kPa (0.270 kgf/cm², 4.0 psi)
Front wheel:Wheel type:
Cast wheel (YFM70GPAJ, YFM70GPHJ, YFM70GPLJ,
YFM70GPSJ)
Panel wheel (YFM70GPXJ)
Rim size: 12 x 6.0ATRear wheel:Wheel type:Cast wheel (YFM70GPAJ, YFM70GPHJ, YFM70GPLJ,
YFM70GPSJ)
Panel wheel (YFM70GPXJ)
Rim size:
12 x 7.5ATFront brake:Type:Hydraulic disc brake
Operation:
Right hand operation
Specified brake fluid: DOT 4Rear brake:Type:
Hydraulic disc brake
Operation: Left hand and right foot operation
Specified brake fluid: DOT 4
Front suspension:Type:Double wishbone
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel: 193 mm (7.6 in)Rear suspension:Type:
Double wishbone
Spring/shock absorber type: Coil spring/gas-oil damper
Wheel travel: 232 mm (9.1 in)Electrical system:Ignition system:TCI
Charging system: AC magnetoBattery:Model:YTX20L-BS
Voltage, capacity: 12 V, 18.0 AhHandlebar-mounted light:Bulb type:Halogen bulbBulb voltage, wattage × quantity:Headlight:
LED
UB1A60E0.book Page 4 Wednesday, March 1, 2017 2:36 PM
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10
Handlebar-mounted light:12 V, 35.0/36.5 W × 1
Tail/brake light: LED
Meter lighting:
EL (Electroluminescent)
Neutral indicator light: LED
Reverse indicator light: LED
Coolant temperature warning light:
LED
EPS 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:
LEDFuses:Main fuse:40.0 A
Fuel injection system fuse:
15.0 A
EPS fuse: 40.0 A Headlight fuse:
10.0 A
Signaling system fuse: 10.0 A
Ignition fuse:
10.0 A
Auxiliary DC jack fuse: 10.0 A
Four-wheel-drive motor fuse: 10.0 A
Radiator fan motor fuse:
20.0 A
EBU30402For Europe only
The figures quoted are emission levels and are not
necessarily safe working levels. Whilst there is a
correlation between the emission and exposure
levels, this cannot be used reliably to determine
whether or not further precautions are required.
Factors that influence the actual level of exposure
of work-force include the characteristics of the
work room, the other sources of noise, etc. i.e. the
number of machines and other adjacent process-
es, and the length of time for which an operator is
exposed to the noise. Also the permissible expo-
UB1A60E0.book Page 5 Wednesday, March 1, 2017 2:36 PM
12-1
12
INDEX
AAccessories and loading ................................................ 6-5
Accessories, auxiliary jack ........................................... 4-24
Air filter element, cleaning ........................................... 8-38
Axle boots .................................................................... 8-49BBattery ......................................................................... 8-53
Brake fluid, changing ................................................... 8-46
Brake fluid level, checking ........................................... 8-44
Brake lever, front ......................................................... 4-15
Brake levers, checking and lubricating ........................ 8-50
Brake pads, checking the front and rear ..................... 8-43
Brake pedal and rear brake lever ................................. 4-15
Brake pedal, checking and lubricating ........................ 8-51
Brake pedal free play, adjusting .................................. 8-47
Brakes .......................................................................... 8-43
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................ 8-49
Carrier, front ................................................................. 4-23
Carrier, rear .................................................................. 4-23
Chassis fasteners .......................................................... 5-6
Cleaning ......................................................................... 9-1
Coolant .................................................................5-3, 8-30
Coolant temperature warning light ................................ 4-3DDifferential gear oil ................................................5-3, 8-28
Drive select lever ......................................................... 4-16
Drive select lever and driving in reverse ........................ 6-2
EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge .................................. 8-21
Engine stop switch ........................................................ 4-8
Engine trouble warning light .......................................... 4-3
EPS warning light .......................................................... 4-3FFinal gear oil ......................................................... 5-3, 8-25
Four-wheel-drive/differential gear lock indicator ........... 4-4
Front and rear brake lever free play, checking ............ 8-46
Fuel ....................................................................... 4-16, 5-3
Fuel tank cap ............................................................... 4-16
Fuses, replacing .......................................................... 8-57HHandlebar switches ....................................................... 4-8
Headlight beam, adjusting ........................................... 8-61
Headlight bulb, replacing ............................................. 8-59
High-range indicator light .............................................. 4-2
Horn switch .................................................................... 4-9IIdentification numbers ................................................. 11-1
Indicator lights and warning lights ................................. 4-2
Instruments, lights and switches ................................... 5-7LLabel locations ............................................................... 1-1
Light switch ................................................................... 4-8
Low-range indicator light ............................................... 4-2
UB1A60E0.book Page 1 Wednesday, March 1, 2017 2:36 PM
12-2
12
MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................8-5
Maintenance chart, emission control system ................ 8-3
Model label ................................................................... 11-1
Multi-function display .....................................................4-5NNeutral indicator light .....................................................4-2OOn-Command differential gear lock switch ................. 4-11
On-Command four-wheel-drive switch ....................... 4-10
Override switch .............................................................. 4-9
Owner’s manual and tool kit .......................................... 8-2PPanels, removing and installing ................................... 8-10
Park indicator light ......................................................... 4-2
Parking ........................................................................... 6-5
Parking on a slope ......................................................... 6-5
Part locations ................................................................. 3-1RRear knuckle pivots, lubricating ................................... 8-52
Reverse indicator light ................................................... 4-2
Riding your ATV ............................................................. 7-1SSafety information .......................................................... 2-1
Seat .............................................................................. 4-18
Shock absorber assemblies, adjusting the front and rear ............................................................................. 4-23
Spark arrester, cleaning ............................................... 8-40
Spark plug, checking ...................................................8-18
Specifications ............................................................... 10-1 Speed limiter ................................................................ 4-14
Stabilizer bushes, checking ......................................... 8-51
Starting the engine ......................................................... 6-1
Start switch .................................................................... 4-8
Steering shaft, lubricating ............................................ 8-52
Storage .......................................................................... 9-2
Storage compartments ................................................ 4-19
TTail/brake light ............................................................. 8-62
Throttle lever ........................................................ 4-13, 5-4
Throttle lever free play, adjusting ................................. 8-42
Tires ............................................................................... 5-4
Trailer hitch (YFM70GPHJ / YFM70GPSJ /
YFM70GPLJ) ............................................................. 4-24
Troubleshooting ........................................................... 8-63
Troubleshooting charts ................................................ 8-64VValve clearance ............................................................ 8-43
V-belt case drain plug .................................................. 8-42
Vehicle identification number ....................................... 11-1WWheel hub bearings, checking ..................................... 8-51
Wheel, installing ........................................................... 8-62
Wheel, removing .......................................................... 8-62
UB1A60E0.book Page 2 Wednesday, March 1, 2017 2:36 PM