
EBU17421
TABLE OF CONTENTS
LOCATION OF THE WARNING AND
SPECIFICATION LABELS .............................. 1-1
SAFETY INFORMATION ................................ 2-1
DESCRIPTION................................................ 3-1Left view ...................................................... 3-1
Right view.................................................... 3-1
Controls and instruments............................ 3-2
INSTRUMENT AND CONTROL
FUNCTIONS ................................................... 4-1 Main switch ................................................. 4-1
Indicator lights and warning lights .............. 4-2
Multi-function display (YFM70KPXG / YFM70KPHG / YFM70KPSG) ................... 4-6
Handlebar switches .................................... 4-9
Drive lever “2WD”/“4WD” (YFM70KDXG / YFM70KDHG / YFM70KPXG /
YFM70KPHG).......................................... 4-15
Throttle lever ............................................. 4-16
Speed limiter ............................................. 4-16
Front brake lever ....................................... 4-17
Brake pedal and rear brake lever .............. 4-17 Drive select lever ...................................... 4-18
Fuel tank cap ............................................ 4-18
Fuel ........................................................... 4-19
Seat .......................................................... 4-20
Storage compartment............................... 4-21
Front carrier .............................................. 4-23
Rear carrier ............................................... 4-23
Adjusting the front and rear shock
absorber assemblies (YFM70KPXG /
YFM70KPHG / YFM70KPSG) ................. 4-23
Trailer hitch (YFM70KPXG / YFM70KPHG / YFM70KPSG) ................. 4-24
Auxiliary DC jack....................................... 4-25
PRE-OPERATION CHECKS .......................... 5-1 Fuel ............................................................. 5-3
Engine oil .................................................... 5-3
Final gear oil ............................................... 5-3
Differential gear oil ...................................... 5-3
Coolant ....................................................... 5-3
Front and rear brakes ................................. 5-3
Throttle lever ............................................... 5-4
Tires ............................................................ 5-4
Chassis fasteners ....................................... 5-7UB1660E0.book Page 1 Thursday, February 26, 2015 4:01 PM

1-7
1
**.* kPa
*.** kgf/cm²*.* psi **.* kPa
*.** kgf/cm²
*.* psi
This pictogram shows trailer Hitch Tow
weight limit. (Combined weight of the trailer
and all cargo in the trailer.)
Overloading can cause loss of control.
Loss of control can result in severe injury or
death.
This unit contains high-pressure nitrogen
gas.
Mishandling can cause an explosion. Do not
incinerate, puncture or open.
Use unleaded gasoline only.
Measure the tire pressure when the tires are
cold.
Turning the ATV in 4WD-LOCK
(“DIFF.LOCK”) takes more effort.
Operate at a slow speed and allow extra
time and distance for maneuvers to avoid
loss of control.
Adjust the tire pressure.
Improper tire pressure can cause loss of
control.
Loss of control can result in severe injury or
death. This pictogram shows the loading limits
and/or maximum load capacity for this ATV.
Follow all load limits and other loading
guidelines in this manual.
Load may include the driver, passenger,
human protective gear, accessories, goods,
luggage, and all other load related items.
Make sure you do not exceed the load limits.
Overloading can cause loss of control.
Loss of control can result in severe injury or
death.
This pictogram shows trailer Hitch Tongue
weight limit. (Weight on the trailer tongue.)
Overloading can cause loss of control.
Loss of control can result in severe injury or
death.
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3-2
3
EBU17714Controls and instrumentsYFM70KDXG / YFM70KDHGYFM70KPXG / YFM70KPHG / YFM70KPSG1. Drive select lever
2. Rear brake lever
3. Handlebar switches
4. Drive lever “2WD”/“4WD”
5. Warning and indicator lights
6. Front brake fluid reservoir
7. Front brake lever
8. Throttle lever
9. Auxiliary DC jack
10.Main switch12345678910
1. Drive select lever
2. Rear brake lever
3. Handlebar switches
4. Drive lever “2WD”/“4WD” (YFM70KPXG / YFM70KPHG)
5. Multi-function display
6. Front brake fluid reservoir
7. On-Command four-wheel-drive/differential gear lock
switch (YFM70KPSG)
8. Front brake lever
9. Throttle lever
10.Auxiliary DC jack
11.Main switch123456
78 91011
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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
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4-11
4
TIPIf the digits of the speedometer appear as shown
when the switch is NOT being pushed, this could
indicate a malfunction in the electrical system. In
this case, take the ATV to a Yamaha dealer at the
first opportunity.
WARNING
EWB00151Always ride at a slow speed when the ATV is in
four-wheel-drive differential gear lock, and al-
low extra time and distance for maneuvers.
All wheels turn at the same speed when the dif-
ferential is locked, so it takes more effort to
turn the ATV. The effort needed to turn increas-es with the riding speed. You may lose control
and have an accident if you cannot make a
sharp enough turn for the speed you are trav-
eling.
EBU26608On-Command four-wheel-drive switch
“2WD”/“4WD” (YFM70KPSG)
WARNING
EWB00164Always stop the ATV before changing from
two-wheel drive to four-wheel drive and vice
versa. The ATV handles differently in two-
wheel drive than in four-wheel drive in some
circumstances. Changing from two-wheel
drive to four-wheel drive or vice versa while
moving may cause the ATV to unexpectedly
handle differently. This could distract the oper-
ator and increase the risk of losing control and
of causing an accident. This ATV is equipped with a switch to change from
two-wheel drive to four-wheel drive and vice ver-
sa. Select the appropriate drive according to the
terrain and the conditions.
“2WD” (two-wheel drive): Power is supplied to
the rear wheels.
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4-12
4
“4WD” (four-wheel drive): Power is supplied to
the rear and front wheels.
To change from two-wheel drive to four-wheel
drive, stop the ATV and push the switch in to the
“4WD” position. Then, the four-wheel-drive
indicator “ ” comes on in the multi-function dis-
play.
To change from four-wheel drive to two-wheel
drive, stop the ATV and push the switch in to the
“2WD” position.
EBU30463On-Command differential gear lock switch
“4WD”/“LOCK” (YFM70KPSG)
WARNING
EWB00132Always stop the ATV before changing from
four-wheel drive to four-wheel-drive differen-
tial gear lock or vice versa.
The ATV handles differently in four-wheel drive
than in differential gear lock in some circum-
stances. Changing from four-wheel drive to
differential gear lock or vice versa while mov-
ing may cause the ATV to handle differently un-
expectedly. This could distract the operator
and increase the risk of losing control and
causing an accident.
WARNING
EWB00141Always ride at a slow speed when the ATV is in
differential gear lock, and allow extra time and
distance for maneuvers.
All wheels turn at the same speed when the dif-
ferential gear is locked, so it takes more effort
to turn the ATV. The effort needed to turn in-
creases with the riding speed. You may lose
1. On-Command four-wheel-drive switch “2WD”/“4WD”
2WD
4WD
1
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4
control and have an accident if you cannot
make a sharp enough turn for the speed you
are traveling.
This ATV is equipped with a switch allowing you to
lock the differential gear when in four-wheel drive.
Select the appropriate switch position according
to the terrain and the conditions.
“4WD” (four-wheel drive): Power is supplied to
the rear and front wheels.
“LOCK” (four-wheel drive with the differential
gear locked): Power is supplied to the rear and
front wheels and the differential gear is locked.
Unlike in four-wheel drive, all wheels turn at the
same speed.
To lock the differential gear in four-wheel drive,
make sure the On-Command four-wheel-drive
switch is pushed in to the “4WD” position.
1. On-Command four-wheel-drive switch “2WD”/“4WD”
2. On-Command differential gear lock switch
“4WD”/“LOCK”
2WD
4WD
1
2
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4-14
4Stop the ATV, move the differential gear lock lever
to position (a), and then push the differential gear
lock switch in to the “LOCK” position. When the
differential gear is locked, the differential gear lock
indicator light “DIFF. LOCK” will come on along
with the indicator “ ” in the multi-function dis-
play. To unlock the differential gear, stop the ATV and
push the switch to the “4WD” position.
TIP
When the switch is set to “LOCK” or “4WD”, the
differential gear lock indicator and indicator light
will flash until the differential gear is completely
locked or unlocked.
When the indicator and indicator light are flash-
ing, turning the handlebar back and forth will
help the differential gear lock to engage or dis-
engage.
1. Differential gear lock lever
2. On-Command four-wheel-drive switch “2WD”/“4WD”
2WD
4WD
2
1
(a)
1. On-Command differential gear lock switch
“4WD”/“LOCK”
LOCK4WD
1
UB1660E0.book Page 14 Thursday, February 26, 2015 4:01 PM