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 (YFM70KPXH / YFM70KPHH / YFM70KPSH /
YFM70KPAH) ............................................ 4-6
Handlebar switches .................................... 4-9
Drive lever “2WD”/“4WD” (YFM70KDXH / YFM70KPXH / YFM70KPHH /
YFM70KPAH) .......................................... 4-15
Throttle lever ............................................. 4-16
Speed limiter ............................................. 4-17
Front brake lever ....................................... 4-18 Brake pedal and rear brake lever ............. 4-18
Drive select lever ...................................... 4-19
Fuel tank cap ............................................ 4-19
Fuel ........................................................... 4-19
Seat .......................................................... 4-21
Storage compartment............................... 4-22
Front carrier .............................................. 4-23
Rear carrier ............................................... 4-23
Adjusting the front and rear shock
absorber assemblies (YFM70KPXH /
YFM70KPHH / YFM70KPSH /
YFM70KPAH).......................................... 4-24
Trailer hitch (YFM70KPXH / YFM70KPHH / YFM70KPSH /
YFM70KPAH).......................................... 4-25
Auxiliary DC jack....................................... 4-26
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 ................................. 5-3UB1661E0.book Page 1 Thursday, May 12, 2016 2:47 PM
Throttle lever ............................................... 5-4
Tires ............................................................ 5-4
Chassis fasteners ........................................ 5-7
Instruments, lights and switches ................ 5-7
OPERATION ................................................... 6-1 Starting the engine ...................................... 6-1
Operating the drive select lever and driving in reverse ....................................... 6-2
Engine break-in ........................................... 6-4
Parking ........................................................ 6-5
Parking on a slope ...................................... 6-5
Accessories and loading ............................. 6-5
RIDING YOUR ATV ........................................ 7-1 GETTING TO KNOW YOUR ATV ................ 7-2
RIDE WITH CARE AND GOOD JUDGMENT .............................................. 7-2
BE CAREFUL WHERE YOU RIDE ............... 7-9
TURNING YOUR ATV................................ 7-12
CLIMBING UPHILL ................................... 7-13
RIDING DOWNHILL .................................. 7-16
CROSSING A SLOPE................................ 7-17
CROSSING THROUGH SHALLOW WATER .................................................... 7-18
RIDING OVER ROUGH TERRAIN ............. 7-20
SLIDING AND SKIDDING .......................... 7-21 WHAT TO DO IF... .................................... 7-22
WHAT TO DO... ........................................ 7-22
PERIODIC MAINTENANCE AND
ADJUSTMENT ............................................... 8-1 Owner’s manual and tool kit ....................... 8-2
Periodic maintenance chart for the emission control system ........................... 8-3
General maintenance and lubrication chart.......................................................... 8-5
Removing and installing panels .................. 8-9
Checking the spark plug........................... 8-17
Engine oil and oil filter cartridge ............... 8-20
Final gear oil ............................................. 8-24
Differential gear oil .................................... 8-27
Coolant ..................................................... 8-29
Cleaning the air filter element ................... 8-37
Cleaning the spark arrester ...................... 8-39
V-belt case drain plug............................... 8-41
Adjusting the throttle lever free play ......... 8-41
Valve clearance......................................... 8-42
Brakes....................................................... 8-42
Checking the front brake pads and rear brake friction plates ................................ 8-42
Checking the brake fluid level .................. 8-44
Changing the brake fluid .......................... 8-45
Checking the front brake lever free play... 8-45
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3-2
3
EBU17714Controls and instrumentsYFM70KDXHYFM70KPXH / YFM70KPHH / YFM70KPSH /
YFM70KPAH1. Drive select lever
2. Rear brake lever
3. Handlebar switches
4. Horn switch
5. Drive lever “2WD”/“4WD”
6. Warning and indicator lights
7. Front brake fluid reservoir
8. Front brake lever
9. Throttle lever
10.Auxiliary DC jack
11.Main switch123
4 5 6 7 8 9 10 11
1. Drive select lever
2. Rear brake lever
3. Handlebar switches
4. Horn switch
5. Drive lever “2WD”/“4WD” (YFM70KPXH / YFM70KPHH /
YFM70KPAH)
6. Multi-function display
7. Front brake fluid reservoir
8. On-Command four-wheel-drive/differential gear lock switch (YFM70KPSH)
9. Front brake lever
10.Throttle lever
11.Auxiliary DC jack
12.Main switch123 67
8 9 10 11 12
45
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4
EBU26697Indicator lights and warning lightsYFM70KDXHYFM70KPXH / YFM70KPHH / YFM70KPSH /
YFM70KPAH1. 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” (YFM70KPSH)
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 “ ” (YFM70KPSH)
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
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4-6
4On-Command differential gear lock
indicator “ ” and indicator light “DIFF. LOCK”
(YFM70KPSH)
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
completely locked or unlocked. In this case, start
moving to allow time for the differential to lock or
unlock.
EBU30498Multi-function display (YFM70KPXH /
YFM70KPHH / YFM70KPSH /
YFM70KPAH)The multi-function display is equipped with the
following:
speedometer
odometer1. “SELECT” button
2. “RESET” button
3. “CLOCK” button
4. Speedometer
5. Fuel gauge
6. Clock/Hour meter
7. Odometer/Tripmeter A/Tripmeter B
4
5
7
6
123
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4
EBU18192Override switch “OVERRIDE” (YFM70KPSH)
Top speed is normally limited when operating in
differential gear lock. If conditions require more
engine power when riding forward, push and hold
this switch to override the differential gear lock
speed limiting function. (See page 4-13.) Releas-
ing the switch restores the speed limiting function.
While the override switch is pushed, the segments
of the speedometer digits will appear as shown in
the figure.
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-
1. Override switch “OVERRIDE”
1
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4
EBU30463On-Command differential gear lock switch
“4WD”/“LOCK” (YFM70KPSH)
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 losecontrol 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.
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4-14
4To lock the differential gear in four-wheel drive,
make sure the On-Command four-wheel-drive
switch is pushed in to the “4WD” position. Stop 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.
1. On-Command four-wheel-drive switch “2WD”/“4WD”
2. On-Command differential gear lock switch
“4WD”/“LOCK”
2WD
4WD
1
2
1. Differential gear lock lever
2. On-Command four-wheel-drive switch “2WD”/“4WD”
2WD
4WD
2
1
(a)
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