Adjusting the rear brake lever and brake pedal free play ........................................ 8-46
Axle boots ................................................. 8-48
Brake light switches .................................. 8-49
Checking and lubricating the cables......... 8-49
Checking and lubricating the front and rear brake levers ..................................... 8-50
Checking and lubricating the brake pedal ....................................................... 8-51
Checking the wheel hub bearings............. 8-51
Checking the stabilizer bushes ................. 8-52
Lubricating the rear knuckle pivots ........... 8-52
Lubricating the steering shaft ................... 8-53
Battery....................................................... 8-54
Replacing a fuse ....................................... 8-57
Replacing a headlight bulb ....................... 8-59
Adjusting a headlight beam ...................... 8-62
Replacing the tail/brake light bulb ............ 8-63
Removing a wheel ..................................... 8-64
Installing a wheel....................................... 8-65
Troubleshooting ........................................ 8-66
Troubleshooting charts ............................. 8-67
CLEANING AND STORAGE ........................... 9-1 Cleaning ...................................................... 9-1
Storage........................................................ 9-2 SPECIFICATIONS ........................................ 10-1
CONSUMER INFORMATION....................... 11-1
Identification numbers .............................. 11-1
INDEX .......................................................... 12-1
UB1660E0.book Page 3 Thursday, February 26, 2015 4:01 PM
1-12
1
WARNING
Storage should not exceed 4 kg (9 lbs)
B16-F151F-01
WARNING
Improper ATV use can result in SEVERE
INJURY or DEATH.ALWAYS USE
AN APPROVED HELMET AND PROTECTIVE GEAR NEVER USE
ON PUBLIC ROADS NEVER CARRY
PASSENGERS NEVER USE
WITH DRUGS
OR ALCOHOLNEVER operate :
ALWAYS :
conditions.
with another vehicle.
balance and steering and increase risk
of losing control.
vehicle overturns on hills and rough
terrain and in turns.
seriously affect handling and control.
LOCATE AND READ OWNER’S MANUAL.
FOLLOW ALL INSTRUCTIONS AND WARNINGS.
4XE-F1568-10
YAMAHA
89
UB1660E0.book Page 12 Thursday, February 26, 2015 4:01 PM
2-5
2ungrounded or broken wiring. Visually check
for broken wiring and leaking fuel. Leaking
fuel can be confirmed by the odor of gasoline.
4. Once immediate safety hazards are con- firmed not to exist, you may remove your hel-
met to more closely inspect your vehicle.
Check for external signs of wear, broken
parts, fluid leaks, cracks in the frame, sus-
pension damage, wheel damage, and so on.
Fuel, oil, and coolant usually give off a notice-
able odor.
5. If your vehicle will not restart or if it is unsafe to ride, then turn off all vehicle systems (en-
gine stop switch, main switch, and fuel cock),
and then signal or go for help.
Aftermarket Parts, Accessories, and Modifica-
tions
While you may find aftermarket products similar in
design and quality to genuine Yamaha accesso-
ries, recognize that some aftermarket accessories
or modifications are not suitable because of po-
tential safety hazards to you or others. Installing
aftermarket products or having other modifica-
tions performed to your vehicle that change any of
the vehicle’s design or operation characteristics
can put you and others at greater risk of serious injury or death. You are responsible for injuries re-
lated to changes in the vehicle. Keep the following
guidelines in mind, as well as those provided un-
der “Loading” when mounting accessories.
Never install accessories that would impair the
performance of your ATV. Carefully inspect the
accessory before using it to make sure that it
does not in any way reduce ground clearance,
limit suspension travel, steering travel or control
operation.
Accessories fitted to the ATV can create insta-
bility due to improper weight distribution.
Bulky or large accessories may seriously affect
the stability of the ATV.
Certain accessories can displace the operator
from his or her normal riding position. This im-
proper position limits the freedom of movement
of the operator and may limit control ability,
therefore, such accessories are not recom-
mended.
Use caution when adding electrical accesso-
ries. If electrical accessories exceed the capac-
ity of the ATV’s electrical system, an electric
failure could result, which could cause a dan-
gerous loss of lights or engine power.
UB1660E0.book Page 5 Thursday, February 26, 2015 4:01 PM
4-2
4
EBU26697Indicator lights and warning lightsYFM70KDXG / YFM70KDHGYFM70KPXG / YFM70KPHG / YFM70KPSG1. Fuel level warning light “ ”
2. Engine trouble warning light “ ”
3. Coolant temperature warning light “ ”
4. Neutral indicator light “N”
5. Reverse indicator light “R”
6. Park indicator light “P”
7. Four-wheel-drive indicator light “ ”
123456
7
1. On-Command differential gear lock indicator light “DIFF.
LOCK” (YFM70KPSG)
2. Low-range indicator light “L”
3. High-range indicator light “H”
4. Neutral indicator light “N”
5. Reverse indicator light “R”
6. Park indicator light “P”
7. Four-wheel-drive indicator “ ”
8. On-Command differential gear lock indicator “ ” (YFM70KPSG)
9. Engine trouble warning light “ ”
10.Coolant temperature warning light “ ”
11.Electric Power Steering warning light “EPS”
7,8
1
2
3
4
5
6
91011
UB1660E0.book Page 2 Thursday, February 26, 2015 4:01 PM
4-4
4
Start the engine after making sure that the
warning light is out. Continuous use while
the warning light is on may cause damage to
the engine.
EBU29933Fuel level warning light “ ” (YFM70KDXG /
YFM70KDHG)
This warning light comes on when the fuel level
drops below approximately 4.0 L (1.06 US gal,
0.88 Imp.gal). When this occurs, refuel as soon as
possible.
The electrical circuit of the warning light can be
checked by setting the engine stop switch to “ ”
and turning the key to “ ” (on). The warning light
should come on for a few seconds, and then go
off.
If the warning light does not come on initially when
the key is turned to “ ” (on), or if the warning
light remains on, have a Yamaha dealer check the
electrical circuit.EBU30482Engine trouble warning light “ ”
This warning light comes on or flashes when an
electrical circuit monitoring the engine is not work-
ing correctly. When this occurs, have a Yamaha dealer check the self-diagnosis system.
(YFM70KPXG / YFM70KPHG / YFM70KPSG: See
page 4-8 for an explanation of the self-diagnosis
device.)
The electrical circuit of the warning light can be
checked by turning the key to “ ” (on). The
warning light should come on for a few seconds,
and then go off.
If the warning light does not come on initially when
the key is turned to “ ” (on), or if the warning
light remains on, have a Yamaha dealer check the
electrical circuit.
EBU30571Electric Power Steering warning light “EPS”
(for EPS model)
This warning light comes on when the key is
turned to “ ” (on), and then goes off once the
engine is started. If the warning light remains on or
comes on after the engine is started, the EPS sys-
tem may not be working correctly. When this oc-
curs, have a Yamaha dealer check the EPS
system.
The electrical circuit of the warning light can be
checked by turning the key to “ ” (on). If the
warning light does not come on, have a Yamaha
dealer check the electrical circuit.
UB1660E0.book Page 4 Thursday, February 26, 2015 4:01 PM
4-5
4
TIPIf the engine is stopped using the engine stop
switch and the key is in the “ ” (on) position,
the EPS warning light comes on to indicate that
the power assistance for the steering is not
functioning.
If the steering load is too heavy (i.e., excessive
steering use when the ATV is traveling at a slow
speed), the power assist is reduced to protect
the EPS motor from overheating. EBU34250Four-wheel-drive indicator light “ ”
(YFM70KDXG / YFM70KDHG)
This indicator light comes on when the drive lever
is set to the “4WD” position.TIPDue to the synchronizing mechanism in the differ-
ential gear case, the light may not come on until
the ATV starts moving.
Four-wheel-drive indicator “ ” (YFM70KPXG /
YFM70KPHG / YFM70KPSG)
This indicator comes on when the drive lever or
the On-Command four-wheel-drive switch is set
to the “4WD” position.TIPDue to the synchronizing mechanism in the differ-
ential gear case, the indicator may not come on
until the ATV starts moving. On-Command differential gear lock
indicator “ ” and indicator light “DIFF. LOCK”
(YFM70KPSG)
This indicator and indicator light come on when
the On-Command differential gear lock switch is
set to the “LOCK” position.TIPWhen the On-Command differential gear lock
switch is set to “LOCK” or “4WD”, the
indicator “ ” and the indicator light “DIFF. LOCK”
will flash until the differential gear is completely
locked or unlocked. If the indicator and the indica-
tor light continue to flash, the differential is not
UB1660E0.book Page 5 Thursday, February 26, 2015 4:01 PM
6-7
6bulky object attached to the handlebars which
could make steering difficult, an accessory that
limits your ability to move around on the seat, or
one that limits your view.
Use extra caution when riding an ATV with ac-
cessories. The ATV may handle differently than
it does without accessories.
EBU21042Loading
WARNING
EWB00821Never exceed the stated load capacity for this
ATV. Overloading this ATV or carrying or tow-
ing cargo improperly could cause changes in
ATV handling which could lead to an accident.
Cargo should be properly distributed and se-
curely attached. Reduce speed when carrying
cargo or pulling a trailer. Allow greater dis-
tance for braking. Cargo or a trailer can change the stability and han-
dling of an ATV.
You must use common sense and good judgment
when carrying cargo or towing a trailer. Keep the
following points in mind:
Never exceed the weight limits shown. An over-
loaded ATV can be unstable.
Do not exceed the maximum tongue weight.
You can measure tongue weight with a bath-
room scale. Put the tongue of the loaded trailer
on the scale with the tongue at hitch height. Ad-
just the load in the trailer, if necessary, to reduce MAXIMUM LOADING LIMIT
ATV loading limit (total weight of rider, car-
go, accessories, and tongue):240.0 kg (530 lb)
Front carrier: 50.0 kg (110 lb)
Rear carrier: 90.0 kg (198 lb)
Storage compartment: 4.0 kg (9 lb)
Trailer hitch: Pulling load (total weight of trailer and
cargo):5880 N (600 kgf, 1322 lbf)
Tongue weight (vertical weight on trailer
hitch point): 147 N (15 kgf, 33 lbf)UB1660E0.book Page 7 Thursday, February 26, 2015 4:01 PM
7-18
7
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
than the depth specified in your Owner’s Man-
ual, as tires may float, increasing the risk of an
overturn.
UB1660E0.book Page 18 Thursday, February 26, 2015 4:01 PM