Page 30 of 180
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
UB5K60E0.book Page 1 Monday, May 28, 2018 11:35 AM
Page 41 of 180

4-10
4
Coolant temperature display
When the coolant is in the normal operating tem-
perature range, the temperature is displayed.
When the coolant temperature rises, the coolant
temperature display will begin to flash. If the cool-
ant temperature continues to rise, the message
“Hi” will flash. TIP
The coolant temperature display can be set to
“°C” or “°F”. To switch the temperature units,
turn the key to “ ” (off), then while holding the
“RESET” button pushed, turn the key to “ ”
(on).
The radiator fan turns on and off automatically
according to the coolant temperature.
Fuel gauge
The fuel gauge indicates the amount of fuel in the
fuel tank. The display segments of the fuel gauge
disappear from “F” (full) towards “E” (empty) as
the fuel level decreases. When the last segment
starts flashing, approximately 4.0 L (1.06 US gal,
0.88 Imp.gal) of fuel remains. Refuel as soon as
possible.
1. Coolant temperature display1
1. Fuel gauge
1
UB5K60E0.book Page 10 Monday, May 28, 2018 11:35 AM
Page 127 of 180

8-29
8
TIPIf genuine Yamaha coolant is not available, use an
ethylene glycol antifreeze containing corrosion in-
hibitors for aluminum engines and mix with dis-
tilled water at a 1:1 ratio. NOTICEECB02190Mix antifreeze with distilled water only. Howev-
er, if distilled water is not available, soft water
may be used for refilling. Do not use hard water
or salt water since they are harmful to the en-
gine. EBU34201To check the coolant level1. Park the ATV on a level surface.
TIPThe coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture. 2. Check the coolant level in the coolant reser- voir.TIPThe coolant should be between the minimum and
maximum level marks.
Recommended coolant:YAMALUBE coolant
Coolant quantity: Coolant reservoir (up to full level):0.24 L (0.25 US qt, 0.21 Imp.qt)
Radiator (including all routes): 1.99 L (2.10 US qt, 1.75 Imp.qt)
1. Maximum level mark
2. Minimum level mark
12
UB5K60E0.book Page 29 Monday, May 28, 2018 11:35 AM
Page 128 of 180

8-30
83. If the coolant is at or below the minimum level
mark, remove panels A and C to access the
coolant reservoir. (See page 8-9.)
4. Remove the coolant reservoir cap, add cool- ant or distilled water to the maximum level
mark, install the reservoir cap, and then install
the panels. NOTICE: If coolant is not avail-
able, use distilled water or soft tap water
instead. Do not use hard water or salt wa-
ter since they are harmful to the engine. If
water has been used instead of coolant,
replace it with coolant as soon as possible,
otherwise the cooling system will not be
protected against frost and corrosion. If
water has been added to the coolant, have
a Yamaha dealer check the antifreeze con-
tent of the coolant as soon as possible,
otherwise the effectiveness of the coolant
will be reduced.
[ECB01012]
TIP The radiator fan is automatically switched on or
off according to the coolant temperature in the
radiator.
If the engine overheats, see page 8-67 for fur-
ther instructions. 1. Coolant reservoir capCoolant reservoir capacity (up to the maxi-
mum level mark):
0.24 L (0.25 US qt, 0.21 Imp.qt)
1
UB5K60E0.book Page 30 Monday, May 28, 2018 11:35 AM
Page 129 of 180
8-31
8
EBU34213To change the coolant
WARNING
EWB01891Wait for the engine and radiator to cool before
removing the radiator cap. You could be
burned by hot fluid and steam blown out under
pressure. Always place a thick rag over the cap
when opening. Allow any remaining pressure
to escape before completely removing the cap. 1. Park the ATV on a level surface.
2. Remove panels A, B, C, and D. (See page8-9.)
3. Remove the footboard by removing the bolts and nuts. 4. Remove the radiator cap.
1. Footboard
2. Bolt and nut
3. Bolt
3
2
2
3
1
UB5K60E0.book Page 31 Monday, May 28, 2018 11:35 AM
Page 130 of 180
8-32
85. Place a container under the engine, and then
remove the coolant drain bolt and its gasket.
(Use a trough or a similar object as shown to
prevent coolant from spilling on the engine
guard.)
1. Radiator cap
1
1. Coolant drain bolt
2. Gasket
1. Trough
1
2
1
UB5K60E0.book Page 32 Monday, May 28, 2018 11:35 AM
Page 133 of 180
8-35
8
22. Pour additional coolant into the radiator until
it is full.
23. Stop the engine and allow it to cool. If the coolant level has dropped after the engine
has cooled, add sufficient coolant until it
reaches the top of the radiator, and then in-
stall the radiator cap.
24. Start the engine, and then check for coolant leakage.
TIPIf any leakage is found, have a Yamaha dealer
check the cooling system. 25. Install the V-belt cooling duct, and then tight-en the clamp screw.
26. Install the footboard by installing the bolts and nuts, and then tighten them to the speci-
fied torques.
TIPTighten footboard bolts B in the order shown. 1. Footboard nut
2. Footboard bolt A
3. Footboard bolt B
3
1
2
1
UB5K60E0.book Page 35 Monday, May 28, 2018 11:35 AM
Page 155 of 180
8-57
8
YFM70KDXK / YFM70KDHK YFM70KPXK / YFM70KPAK / YFM70KPHK /
YFM70KPSK / YFM70KPLK
If an electrical problem is suspected, check the
fuse and replace it if necessary as follows.
1. Headlight fuse
2. Signaling system fuse
3. Radiator fan motor fuse
4. Ignition fuse
5. Auxiliary DC jack fuse
6. Spare fuse
12345
6
1. Headlight fuse
2. Radiator fan motor fuse
3. Signaling system fuse
4. Ignition fuse
5. Four-wheel-drive motor fuse
6. Auxiliary DC jack fuse
7. Spare fuse
123456
7
UB5K60E0.book Page 57 Monday, May 28, 2018 11:35 AM