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8
EBU27695Troubleshooting chartsStarting problems or poor engine performance
Check the fuel level in
the fuel tank.1. Fuel
There is enough fuel.There is no fuel.
Check the battery.
Supply fuel.
The engine does not start.
Check the battery.
Operate the electric starter.4. Compression
There is compression.
There is no compression.
The engine does not start.
Have a Yamaha dealer check the ATV.
Remove the spark plug
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug. Have a Yamaha dealer check the ATV.
The engine does not start.
Check the compression.
DryWet
Operate the electric starter.
Have a Yamaha dealer check the ATV.
The engine does not start.
Check the ignition.
Operate the electric starter.2. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and have a Yamaha dealer charge
the battery if necessary.
UB1662E0.book Page 66 Monday, April 17, 2017 11:39 AM
8-67
8Engine overheating
WARNING
EWB02291Wait 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 put a thick rag over the cap when opening.
Allow any remaining pressure to escape before completely removing the cap. TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the
recommended coolant as soon as possible. Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer check
and repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again, have a
Yamaha dealer check and repair the cooling system.
There is
leakage.
There is
no leakage.
UB1662E0.book Page 67 Monday, April 17, 2017 11:39 AM
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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 pla-
ces.
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.
UB1662E0.book Page 1 Monday, April 17, 2017 11:39 AM
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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)UB1662E0.book Page 2 Monday, April 17, 2017 11:39 AM
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EBU25962
SPECIFICATIONS
Dimensions:Overall length:2070 mm (81.5 in)
Overall width: 1180 mm (46.5 in)
Overall height:
1240 mm (48.8 in)
Seat height: 860 mm (33.9 in)
Wheelbase: 1250 mm (49.2 in)
Ground clearance:
275 mm (10.8 in)
Minimum turning radius: 3200 mm (126 in)Weight:Curb weight:
300.0 kg (661 lb) (YFM70KDHJ, YFM70KDXJ)
307.0 kg (677 lb) (YFM70KPXJ)
313.0 kg (690 lb) (YFM70KPAJ, YFM70KPHJ,
YFM70KPSJ)Noise and vibration level:Noise level (77/311/EEC):80.0 dB(A) at 3125 r/min (YFM70KDHJ,
YFM70KDXJ_EUR/FRA/GBR, YFM70KPAJ,
YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ_EUR/FRA/GBR) Uncertainty of measurement:
3.0 dB(A) (YFM70KDHJ, YFM70KDXJ_EUR/FRA/GBR,
YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ_EUR/FRA/GBR)
Vibration on seat (EN1032, ISO5008): Will not exceed 0.5 m/s² (YFM70KDHJ,
YFM70KDXJ_EUR/FRA/GBR, YFM70KPAJ,
YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ_EUR/FRA/GBR)
Uncertainty of measurement:
0.0 m/s² (YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ_EUR/FRA/GBR)
0.1 m/s² (YFM70KDHJ, YFM70KDXJ_EUR/FRA/GBR)
Vibration on handle (EN1032, ISO5008): Will not exceed 2.5 m/s² (YFM70KDHJ,
YFM70KDXJ_EUR/FRA/GBR, YFM70KPAJ,
YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ_EUR/FRA/GBR)
Uncertainty of measurement:
0.3 m/s² (YFM70KDHJ, YFM70KDXJ_EUR/FRA/GBR,
YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ_EUR/FRA/GBR)
Engine:Engine type:Liquid cooled 4-stroke, DOHC
Cylinder arrangement: Single cylinder
Displacement: 708 cm³
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Bore × stroke:
103.0 × 85.0 mm (4.06 × 3.35 in)
Compression ratio: 10.1 : 1
Starting system:
Electric starter
Lubrication system: Wet sumpEngine oil:Recommended brand:
YAMALUBE
Type: SAE 0W-30, 10W-30, 10W-40, 15W-40, 20W-40 or 20W-
50
Recommended engine oil grade: API service SG type or higher, JASO standard MA Engine oil quantity:
Without oil filter cartridge replacement:
2.00 L (2.11 US qt, 1.76 Imp.qt)
With oil filter cartridge replacement: 2.10 L (2.22 US qt, 1.85 Imp.qt)
Final gear oil:Type:
Yamaha Friction Modified Plus Shaft Drive Oil (Part No.: ACC-SHFTL-PL-32)
Quantity:
0.52 L (0.55 US qt, 0.46 Imp.qt)Differential gear oil:Type:Yamaha Friction Modified Plus Shaft Drive Oil (Part No.: ACC-SHFTL-PL-32) or SAE 80 API GL-4 Hypoid gear oil
Quantity: 0.22 L (0.23 US qt, 0.19 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes): 1.76 L (1.86 US qt, 1.55 Imp.qt)Air filter:Air filter element:Wet elementFuel:Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity: 18.0 L (4.75 US gal, 3.96 Imp.gal)
0 10 30 50 70 90 110 130 ˚F
–20 –10 0 10 20 30 40 50 ˚CSAE 0W-30
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40SAE 20W-50
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10
Handlebar-mounted light:Bulb type:Halogen bulb (YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ)Bulb voltage, wattage × quantity:Headlight:
12 V, 30.0/30.0 W × 2
Handlebar-mounted light: 12 V, 35.0/36.5 W × 1 (YFM70KPAJ, YFM70KPHJ,
YFM70KPSJ, YFM70KPXJ)
Tail/brake light: 12 V, 5.0/21.0 W × 1
Meter lighting: EL (Electroluminescent) (YFM70KPAJ, YFM70KPHJ,
YFM70KPSJ, YFM70KPXJ)
Neutral indicator light: LED
Fuel level warning light:
LED (YFM70KDHJ, YFM70KDXJ)
Reverse indicator light: LED
Coolant temperature warning light: LED
EPS warning light:
LED (YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ)
Park indicator light:
LED
Four-wheel-drive indicator light: 12 V, 1.7 W × 1 (YFM70KDHJ, YFM70KDXJ)
Engine trouble warning light: LED High-range indicator light:
LED (YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ)
Low-range indicator light: LED (YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ)
Differential gear lock indicator light: LED (YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ)
Fuses:Main fuse:40.0 A
Fuel injection system fuse:
15.0 A
EPS fuse: 40.0 A (YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ)
Headlight fuse: 10.0 A (YFM70KDHJ, YFM70KDXJ)
15.0 A (YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ)
Signaling system fuse:
10.0 A
Ignition fuse: 10.0 A
Auxiliary DC jack fuse: 10.0 A
Four-wheel-drive motor fuse:
10.0 A (YFM70KPAJ, YFM70KPHJ, YFM70KPSJ,
YFM70KPXJ)
Radiator fan motor fuse:
20.0 A
UB1662E0.book Page 5 Monday, April 17, 2017 11:39 AM
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INDEX
AAccessories and loading ................................................ 6-5
Accessories, DC jack ...................................................4-24
Air filter element, cleaning ............................................ 8-37
Axle boots .................................................................... 8-48BBattery .......................................................................... 8-53
Brake fluid, changing ...................................................8-44
Brake fluid level, checking ........................................... 8-43
Brake lever free play, checking the front ..................... 8-45
Brake lever, front .......................................................... 4-15
Brake levers, checking and lubricating ........................ 8-49
Brake light switches ..................................................... 8-48
Brake pads and friction plates, checking ..................... 8-42
Brake pedal and rear brake lever ................................. 4-16
Brake pedal, checking and lubricating ........................ 8-50
Brakes .......................................................................... 8-42
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-49
Carrier, front ................................................................. 4-21
Carrier, rear .................................................................. 4-22
Chassis fasteners ........................................................... 5-6
Cleaning ......................................................................... 9-1
Coolant ................................................................. 5-3, 8-29
Coolant temperature warning light ................................. 4-3DDifferential gear lock, indicators (YFM70KPXJ / YFM70KPAJ / YFM70KPHJ / YFM70KPSJ) ................ 4-5 Differential gear oil ............................................... 5-3, 8-27
Drive lever 2WD/4WD (YFM70K
DXJ / YFM70KDHJ) ... 4-13
Drive select lever .......................................................... 4-16
Drive select lever and driving in reverse ........................ 6-2
EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge .................................. 8-20
Engine stop switch ......................................................... 4-9
Engine trouble warning light .......................................... 4-3
EPS warning light (for EPS model) ................................. 4-4FFinal gear oil ......................................................... 5-3, 8-24
Four-wheel drive icon (YFM70KPXJ / YFM70KPAJ / YFM70KPHJ / YFM70KPSJ) ........................................ 4-5
Four-wheel drive indica tor light (YFM70KDXJ /
YFM70KDHJ) ............................................................... 4-4
Four-wheel drive switch (On-Command 4WD)
(YFM70KPXJ / YFM70KPAJ / YFM70KPHJ /
YFM70KPSJ) ............................................................. 4-11
Fuel ...................................................................... 4-17, 5-3
Fuel level warning light (YFM70KDXJ / YFM70KDHJ) ............................................................... 4-3
Fuel tank cap ............................................................... 4-17
Fuses, replacing ........................................................... 8-57HHandlebar switches ....................................................... 4-8
Headlight beam, adjusting ........................................... 8-62
Headlight bulb, replacing ............................................. 8-59
UB1662E0.book Page 1 Monday, April 17, 2017 11:39 AM