Page 11 of 180

Brake light switches .................................. 8-48
Checking and lubricating the cables......... 8-48
Checking and lubricating the front and rear brake levers ..................................... 8-49
Checking and lubricating the brake pedal ....................................................... 8-50
Checking the wheel hub bearings............. 8-50
Checking the stabilizer bushes ................. 8-51
Lubricating the rear knuckle pivots ........... 8-51
Lubricating the steering shaft ................... 8-52
Battery....................................................... 8-53
Replacing a fuse ....................................... 8-56
Replacing a headlight bulb ....................... 8-59
Adjusting a headlight beam ...................... 8-62
Replacing the brake/tail light bulb ............ 8-63
Removing a wheel ..................................... 8-64
Installing a wheel....................................... 8-64
Troubleshooting ........................................ 8-65
Troubleshooting charts ............................. 8-66
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
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2-6
2
gerous loss of lights or engine power. Also, the
battery tends to discharge more quickly if elec-
trical accessories are added.
WARNING
EWB00073Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon monoxide,
a deadly gas. Breathing carbon monoxide can
cause headaches, dizziness, drowsiness, nau-
sea, confusion, and eventually death.
Carbon Monoxide is a colorless, odorless,
tasteless gas which may be present even if you
do not see or smell any engine exhaust. Deadly
levels of carbon monoxide can collect rapidly
and you can quickly be overcome and unable
to save yourself. Also, deadly levels of carbon
monoxide can linger for hours or days in en-
closed or poorly ventilated areas. If you experi-
ence any symptoms of carbon monoxide
poisoning, leave the area immediately, get
fresh air, and SEEK MEDICAL TREATMENT.
Do not run engine indoors. Even if you try to
ventilate engine exhaust with fans or open
windows and doors, carbon monoxide can
rapidly reach dangerous levels.
Do not run engine in poorly ventilated or par-
tially enclosed areas such as barns, garages,
or carports.
Do not run engine outdoors where engine
exhaust can be drawn into a building through
openings such as windows and doors.
UB5K60E0.book Page 6 Monday, May 28, 2018 11:35 AM
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3-1
3
EBU17681
DESCRIPTION
EBU17691Left view
EBU17701Right view
1. Radiator cap
2. Battery
3. Fuses
4. Air filter
5. Spark arrester
6. Rear brake light switch
7. Engine oil dipstick
8. Oil filter cartridge
9. Coolant reservoir
5
1
2,3
47
8
6
9
1. Rear shock absorber
2. Fuel tank cap
3. Tool kit
4. Storage compartment
5. Spark plug
6. Front shock absorber
7. Brake pedal
8. V-belt case drain plug
5
1
6
23
478
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4-2
4
YFM70KPXK / YFM70KPAK / YFM70KPHK /
YFM70KPSK / YFM70KPLK
EBU17992Low-range indicator light “ ” (YFM70KPXK /
YFM70KPAK / YFM70KPHK / YFM70KPSK /
YFM70KPLK)
This indicator light comes on when the transmis-
sion is in the low-range position.EBU17982High-range indicator light “ ” (YFM70KPXK /
YFM70KPAK / YFM70KPHK / YFM70KPSK /
YFM70KPLK)
This indicator light comes on when the transmis-
sion is in the high-range position.EBU17861Neutral indicator light “ ”
This indicator light comes on when the transmis-
sion is in the neutral position.EBU17831Reverse indicator light “ ”
This indicator light comes on when the transmis-
sion is in the reverse position.
1. Differential gear lo
ck indicator light “ ”
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 “ ”
7. Four-wheel drive icon “ ”
8. Differential gear lock icon “ ”
9. Electric Power Steering warning light “EPS”
10.High beam indicator light “ ”
11.Battery voltage warning light “ ”
12.Coolant temperature warning light “ ”
13.Engine trouble warning light “ ”1
7,8
23456
910111213
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4-3
4
EBU38270Park indicator light “ ” (YFM70KDXK /
YFM70KDHK) / “ ” (YFM70KPXK /
YFM70KPAK / YFM70KPHK / YFM70KPSK /
YFM70KPLK)
This indicator light comes on when the transmis-
sion is in the park position.EBU27982High beam indicator light “ ” (YFM70KPXK /
YFM70KPAK / YFM70KPHK / YFM70KPSK /
YFM70KPLK)
This indicator light comes on when the high beam
of the headlight is switched on.EBU38261Battery voltage warning light “ ”
(YFM70KPXK / YFM70KPAK / YFM70KPHK /
YFM70KPSK / YFM70KPLK)
This warning light comes on if the detected battery
voltage is less than 10 volts, or greater than 18
volts.EBU38290Coolant temperature warning light “ ”
This warning light comes on when the engine
overheats.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 vehicle.
NOTICEECB02040
The engine may overheat if the vehicle is
overloaded. If this happens, reduce the load
to specification.
After restarting, make sure that the warning
light is out. Continuous use while this warn-
ing light is on may cause damage to the en-
gine. YFM70KDXK / YFM70KDHK
If the light comes on during operation, stop the ve-
hicle as soon as it is safe to do so and allow the
engine to cool down for about 10 minutes. (See
page 8-67.)
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4-9
4CLOCK
→ HOUR → VOLT → → CLOCK
To set the clock
1. Set the display to the clock.
2. Push both the “SELECT” button and “RE- SET” button for 2 seconds. The hour digits
will start flashing.
3. Push the “RESET” button to set the hours.
4. Push the “SELECT” button, and the minute digits will start flashing.
5. Push the “RESET” button to set the minutes.
6. Push the “SELECT” button, and then release it to start the clock. Voltage display
This display shows the battery voltage. If the bat-
tery voltage is less than 10 volts, “Lo” is displayed,
and if the voltage is above 18 volts, “Hi” is dis-
played.NOTICEECB03570If the voltage display indicates “Lo” or “Hi”,
there may be trouble with the battery charging
circuit or the battery may be faulty. If this oc-
curs, have a Yamaha dealer check or repair the
vehicle. 1. Voltage display1
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4-14
4
EBU18102Start switch “ ”
Push this switch to crank the engine with the start-
er. See the starting instructions on page 6-1 prior
to starting the engine.EBU34123Light switch “ / /OFF”
Set this switch to “ ” to turn on the left and right
headlights (low beams) and the taillight. Set the
switch to “ ” to turn on the left and right head-
lights (high beams), the handlebar-mounted light
(YFM70KPXK / YFM70KPAK / YFM70KPHK /
YFM70KPSK / YFM70KPLK), and the taillight. Set
the switch to “OFF” to turn off all the lights.NOTICEECB00046Do not use the headlights with the engine
turned off for an extended period of time. The
battery may discharge to the point that the
starter will not have enough power to crank the
engine. If this should happen, remove the bat-
tery and recharge it. (See page 8-53.) EBU18171Horn switch “ ”
Press the switch to sound the horn.
EBU18192Override switch “OVERRIDE” (YFM70KPXK /
YFM70KPAK / YFM70KPHK / YFM70KPSK /
YFM70KPLK)
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 4-16.) 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.
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4-30
4
NOTICEECB00122If accessories are used with the engine off or
with the headlights on, the battery may dis-
charge to the point that the engine will not
start.
Do not use an automotive cigarette lighter or
other accessory with a plug that gets hot.
The DC jack may be damaged. UB5K60E0.book Page 30 Monday, May 28, 2018 11:35 AM