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8
If an electrical problem is suspected, check the
fuse and replace it if necessary as follows.
NOTICEECB00641To prevent accidental short-circuiting, turn off
the main switch when checking or replacing a
fuse. 1. Turn off all electrical systems. (See page 4-1.) 2. Remove panel A. (See page 8-10.)
3. Remove the blown fuse, and then install a
new fuse of the specified amperage.
WARNING! Always use a fuse of the spec- ified rating, and never use a substitute ob-
ject in place of the proper fuse. An
improper fuse or a substitute object can
cause damage to the electrical system,
which could lead to a fire.
[EWB02173]
1. Headlight fuse
2. Signaling system fuse
3. Radiator fan motor fuse
4. Ignition fuse
5. Four-wheel-drive motor fuse
6. Auxiliary DC jack fuse
7. Spare fuse
123456
7
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8-58
84. Turn on the main switch and start the engine.
5. If the fuse immediately blows again, have aYamaha dealer check the vehicle.
EBU34712Replacing a headlight bulbLeft and right headlights
This model is equipped with LED-type headlights.
If a headlight does not come on, have a Yamaha
dealer check the vehicle and replace the headlight
if necessary.
Handlebar-mounted light
If the handlebar-mounted light bulb burns out, re-
place it with the specified bulb as follows.1. Remove the handlebar-mounted light cover by removing the quick fasteners.
Specified fuses:
Main fuse:40.0 A
Headlight fuse: 10.0 A
Ignition fuse: 10.0 A
Four-wheel-drive motor fuse: 10.0 A
Signaling system fuse: 10.0 A
Auxiliary DC jack fuse: 10.0 A
Radiator fan motor fuse: 20.0 A
Fuel injection system fuse: 15.0 A
EPS fuse: 40.0 A1. Handlebar-mounted light cover
2. Quick fastener
1
2
2
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8-61
8
EBU26922Brake/tail lightThis model is equipped with an LED type of
brake/tail light.
If the brake/tail light does not come on, have a
Yamaha dealer check it.EBU25653Removing a wheel1. Park the ATV on a level surface.
2. Loosen the wheel nuts.
3. Elevate the ATV and place a suitable stand under the frame.
4. Remove the nuts from the wheel.
5. Remove the wheel.
1. Handlebar-mounted light beam adjusting screw
1. Adjusting screw (left and right headlights)
(b)
(a)
1
(b)
(a)
1
1. Wheel nut
1
1
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8-62
8
EBU36243Installing a wheel1. Install the wheel with the arrow mark pointingin the forward rotating direction of the wheel,
and then install the wheel nuts.TIPFor YFM70GPXK: be sure to install the nuts with
their tapered side towards the wheel.
2. Lower the ATV to the ground.
3. Tighten the wheel nuts to the specifiedtorques.
1. Arrow mark
2. Forward rotating direction
3. Wheel nut
1
3
3 2
1. Tapered nutTightening torques:
Front wheel nut:55 N·m (5.5 kgf·m, 41 lb·ft)
Rear wheel nut: 55 N·m (5.5 kgf·m, 41 lb·ft)1
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9-1
9
EBU25861
CLEANING AND STORAGE
EBU25882CleaningFrequent, thorough cleaning of your ATV will not
only enhance its appearance but will improve its
general performance and extend the useful life of
many components.1. Before cleaning the ATV: a. Block off the end of the exhaust pipe toprevent water entry. A plastic bag and
strong rubber band may be used.
b. Make sure the spark plug and all filler caps are properly installed.
2. If the engine case is excessively greasy, apply degreaser with a paint brush. Do not apply
degreaser to the wheel axles.
3. Rinse the dirt and degreaser off with a garden hose. Use only enough pressure to do the
job. WARNING! Wet brakes may have re-
duced stopping ability, increasing the
chance of an accident. Test the brakes af-
ter washing. Apply the brakes several
times at slow speeds to let friction dry out
the linings.
[EWB02312]
NOTICE: Excessive wa-
ter pressure may cause water seepage and deterioration of wheel bearings,
brakes, transmission seals and electrical
devices. Many expensive repair bills have
resulted from improper high-pressure de-
tergent applications such as those avail-
able in coin-operated car washers.
[ECB00712]
4. Once most of the dirt has been hosed off,
wash all surfaces with warm water and mild,
detergent-type soap. An old toothbrush or
bottle brush is handy for hard-to-reach plac-
es.
5. Rinse the ATV off immediately with clean wa- ter and dry all surfaces with a chamois, clean
towel or soft absorbing cloth.
6. Clean the seat with a vinyl upholstery cleaner to keep the cover pliable and glossy.
7. Automotive type wax may be applied to all painted and chrome plated surfaces. Avoid
combination cleaner-waxes. Many contain
abrasives which may mar the paint or protec-
tive finish. When finished cleaning, start the
engine and let it idle for several minutes.
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9-2
9
EBU27264StorageShort-term
Always store your ATV in a cool, dry place and, if
necessary, protect it against dust with a porous
cover. NOTICE: Storing the ATV in a poorly ven-
tilated room or covering it with a tarp while it is
still wet, will allow water and humidity to seep
in and cause rust. To prevent corrosion, avoid
damp cellars, stables (because of the presence
of ammonia) and areas where strong chemi-
cals are stored.
[ECB00722]
Long-term
Before storing your ATV for several months: 1. Make any necessary repairs and perform all outstanding maintenance.
2. Follow all the instructions in the Cleaning sec- tion of this chapter.
3. Fill up the fuel tank and add fuel stabilizer (Fu- el Med Rx if available), and then run the en-
gine for 5 minutes to distribute the treated
fuel. 4. Perform the following steps to protect the en-
gine from internal corrosion.a. Remove the spark plug cap and spark plug.
b. Pour a teaspoonful of engine oil into the spark plug bore.
c. Install the spark plug cap onto the spark plug, and then place the spark plug on the
cylinder head so that the electrodes are
grounded. (This will limit sparking during
the next step.)
d. Turn the engine over several times with the starter. (This will coat the cylinder wall
with oil.)
e. Remove the spark plug cap from the spark plug, and then install the spark plug and
the spark plug cap.
5. Lubricate all control cables and the pivoting points of all levers and pedals.
6. Put the frame on stands or blocks to raise all wheels off the ground. (Alternatively, turn the
wheels each month to prevent the tires from
degrading in one spot.)
7. Cover the muffler outlet with a plastic bag to prevent moisture from entering it.
Specified amount:
7.5 ml per liter of fuel (1 oz per gallon)UB4F60E0.book Page 2 Wednesday, April 25, 2018 11:52 AM
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10-1
10
EBU25962
SPECIFICATIONS
Dimensions:Overall length:2070 mm (81.5 in)
Overall width: 1230 mm (48.4 in) (YFM70GPAK, YFM70GPHK,
YFM70GPXK)
1250 mm (49.2 in) (YFM70GPLK)
Overall height: 1253 mm (49.3 in) (YFM70GPAK, YFM70GPHK,
YFM70GPXK)
1270 mm (50.0 in) (YFM70GPLK)
Seat height:
918 mm (36.1 in) (YFM70GPAK, YFM70GPHK,
YFM70GPXK)
930 mm (36.6 in) (YFM70GPLK)
Wheelbase: 1250 mm (49.2 in)
Ground clearance:
288 mm (11.3 in) (YFM70GPAK, YFM70GPHK,
YFM70GPXK)
300 mm (11.8 in) (YFM70GPLK)
Minimum turning radius: 3.7 m (12.14 ft)
Maximum water depth:
35 cm (14 in)
Weight:Curb weight:313.0 kg (690 lb) (YFM70GPXK)
318.0 kg (701 lb) (YFM70GPAK, YFM70GPHK)
342.0 kg (754 lb) (YFM70GPLK)Loading:Maximum loading limit:240.0 kg (530 lb)
(Total weight of rider, cargo, accessories, and tongue)Noise and vibration level:Noise level (77/311/EEC):78.0 dB(A) at 3125 r/min (YFM70GPAK,
YFM70GPHK_EUR/FRA/GBR,
YFM70GPXK_EUR/FRA/GBR)
79.0 dB(A) at 3125 r/min (YFM70GPLK)
Uncertainty of measurement:
0.5 dB(A) (YFM70GPLK)
0.6 dB(A) (YFM70GPAK, YFM70GPHK_EUR/FRA/GBR,
YFM70GPXK_EUR/FRA/GBR)
Vibration on seat (EN1032, ISO5008): Will not exceed 0.5 m/s² (YFM70GPAK,
YFM70GPHK_EUR/FRA/GBR, YFM70GPLK,
YFM70GPXK_EUR/FRA/GBR)
Uncertainty of measurement: 0.0 m/s² (YFM70GPAK, YFM70GPHK_EUR/FRA/GBR,
YFM70GPLK, YFM70GPXK_EUR/FRA/GBR)
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10-4
10
Rear tire:Size:AT26 x 10-12 (YFM70GPAK, YFM70GPHK,
YFM70GPXK)
AT27 x 10-14 (YFM70GPLK)
Manufacturer/model: MAXXIS/MU01 (YFM70GPLK)
MAXXIS/MU06Y (YFM70GPAK, YFM70GPHK,
YFM70GPXK)Tire air pressure (measured on cold tires):Recommended (For Oceania):Front:
35.0 kPa (0.350 kgf/cm², 5.0 psi)
Rear: 30.0 kPa (0.300 kgf/cm², 4.4 psi)
Minimum (For Oceania): Front: 32.0 kPa (0.320 kgf/cm², 4.6 psi)
Rear: 27.0 kPa (0.270 kgf/cm², 4.0 psi)
No cargo or trailer (For Europe):
Recommended: Front: 35.0 kPa (0.350 kgf/cm², 5.0 psi)
Rear: 30.0 kPa (0.300 kgf/cm², 4.4 psi) (YFM70GPAK,
YFM70GPHK, YFM70GPXK)
35.0 kPa (0.350 kgf/cm², 5.0 psi) (YFM70GPLK)
Minimum: Front:
32.0 kPa (0.320 kgf/cm², 4.6 psi) Rear:
27.0 kPa (0.270 kgf/cm², 4.0 psi) (YFM70GPAK,
YFM70GPHK, YFM70GPXK)
32.0 kPa (0.320 kgf/cm², 4.6 psi) (YFM70GPLK)
With cargo or trailer (For Europe):
Recommended: Front: 50.0 kPa (0.500 kgf/cm², 7.3 psi)
Rear: 50.0 kPa (0.500 kgf/cm², 7.3 psi)
Minimum:
Front: 45.0 kPa (0.450 kgf/cm², 6.5 psi)
Rear:
45.0 kPa (0.450 kgf/cm², 6.5 psi)
Front wheel:Rim size:12 x 6.0 AT (YFM70GPAK, YFM70GPHK, YFM70GPXK)
14 x 8.0 AT (YFM70GPLK)Rear wheel:Rim size:
12 x 7.5 AT (YFM70GPAK, YFM70GPHK, YFM70GPXK)
14 x 8.0 AT (YFM70GPLK)Front brake:Type:Hydraulic disc brakeRear brake:Type:
Hydraulic disc brake
UB4F60E0.book Page 4 Wednesday, April 25, 2018 11:52 AM