8-58
8
The main fuse, the fuel injection system fuse, the
EPS fuse, and the fuse box are located under pan-
el A. (See page 8-10.)
If a fuse is blown, replace it as follows. 1. Turn the key to “ ” (off) and turn off all elec- trical circuits.
NOTICEECB00641To prevent accidental short-circuiting, turn off
the main switch when checking or replacing a
fuse. 2. Remove the blown fuse, and then install anew 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
U2UD60E0.book Page 58 Tuesday, April 28, 2015 11:55 AM
8-59
83. Turn the key to “ ” (on) and turn on the elec-trical circuits to check if the devices operate.
4. If the fuse immediately blows again, have a Yamaha dealer check the electrical system.
EBU34710Replacing a headlight bulbCenter headlight
If the headlight bulb burns out, replace it as fol-
lows.1. Remove the headlight cover by removing the quick fasteners.
2. Remove the headlight bulb holder cover by pulling it off.
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 A (YFM70GPHG, YFM70GPLG,
YFM70GPSG, YFM70GPXG)1. Headlight cover
2. Quick fastener
1
2
2
U2UD60E0.book Page 59 Tuesday, April 28, 2015 11:55 AM
8-64
8
EBU25741TroubleshootingAlthough Yamaha ATVs receive a thorough in-
spection before shipment from the factory, trouble
may occur during operation. Any problem in the
fuel, compression, or ignition systems, for exam-
ple, can cause poor starting and loss of power.
The following troubleshooting charts represent
quick and easy procedures for checking these vi-
tal systems yourself. However, should your ATV
require any repair, take it to a Yamaha dealer,
whose skilled technicians have the necessary
tools, experience, and know-how to service the
ATV properly.
Use only genuine Yamaha replacement parts. Im-
itation parts may look like Yamaha parts, but they
are often inferior, have a shorter service life and
can lead to expensive repair bills.
WARNING
EWB02281Do not smoke when checking the fuel system.
Fuel can ignite or explode, causing severe inju-
ry or property damage. Make sure there are no
open flames or sparks in the area, including pi-
lot lights from water heaters or furnaces. U2UD60E0.book Page 64 Tuesday, April 28, 2015 11:55 AM
8-65
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.
U2UD60E0.book Page 65 Tuesday, April 28, 2015 11:55 AM
9-2
9
EBU27262StorageShort-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. Follow all the instructions in the “Cleaning” section of this chapter.
2. Fill up the fuel tank and add fuel stabilizer (if available) to prevent the fuel from deteriorat-
ing. 3. Perform the following steps to protect the cyl-
inder, piston rings, etc. from 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.
4. Lubricate all control cables and the pivoting points of all levers and pedals.
5. Check and, if necessary, correct the tire air pressure, and then block up the ATV so that
all of its wheels are off the ground. Alterna-
tively, turn the wheels a little every month in
order to prevent the tires from becoming de-
graded in one spot.
Specified amount:
7.5 ml of stabilizer to each liter of fuel (or 1
oz of stabilizer to each gallon of fuel)U2UD60E0.book Page 2 Tuesday, April 28, 2015 11:55 AM
10-2
10
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:Mobilfluid 424
Quantity: 0.20 L (0.21 US qt, 0.18 Imp.qt)Differential gear oil:Type: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 L (4.75 US gal, 3.96 Imp.gal)
Fuel reserve amount: 4 L (1.06 US gal, 0.88 Imp.gal)Fuel injection:Throttle body:
ID mark: B161 00Spark plug (s):Manufacturer/model:NGK/CPR7EA-9
Spark plug gap: 0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:Wet, centrifugal automatic
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
U2UD60E0.book Page 2 Tuesday, April 28, 2015 11:55 AM
10-5
10
Coolant temperature warning light:LED
EPS warning light: LED (YFM70GPHG, YFM70GPLG, YFM70GPSG,
YFM70GPXG)
Park indicator light: LED
Engine trouble warning light:
LED
High-range indicator light: LED
Low-range indicator light: LED
Differential gear lock indicator light:
LEDFuses:Main fuse:40.0 A
Fuel injection system fuse:
15.0 A
EPS fuse: 40.0 A (YFM70GPHG, YFM70GPLG, YFM70GPSG,
YFM70GPXG)
Headlight fuse: 10.0 A
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
Radiator fan motor fuse: 20.0 A
EBU30402For Europe only
The figures quoted are emission levels and are not
necessarily safe working levels. Whilst there is a
correlation between the emission and exposure
levels, this cannot be used reliably to determine
whether or not further precautions are required.
Factors that influence the actual level of exposure
of work-force include the characteristics of the
work room, the other sources of noise, etc. i.e. the
number of machines and other adjacent process-
es, and the length of time for which an operator is
exposed to the noise. Also the permissible expo-
sure level can vary from country. This information,
however, will enable the user of the machine to
make a better evaluation of the hazard and risk.
U2UD60E0.book Page 5 Tuesday, April 28, 2015 11:55 AM
12-1
12
INDEX
AAccessories and loading ................................................ 6-6
Accessories, auxiliary jack ........................................... 4-24
Air filter element, cleaning ............................................ 8-38
Axle boots .................................................................... 8-49BBattery .......................................................................... 8-54
Brake fluid, changing ...................................................8-46
Brake fluid level, checking ........................................... 8-45
Brake lever, front .......................................................... 4-14
Brake levers, checking and lubricating ........................ 8-50
Brake pads, checking the front and rear ..................... 8-44
Brake pedal and rear brake lever ................................. 4-14
Brake pedal, checking and lubricating ........................ 8-51
Brake pedal free play, adjusting .................................. 8-47
Brakes .......................................................................... 8-43
Brakes, front and rear .................................................... 5-3CCables, checking and lubricating ................................. 8-50
Carrier, front ................................................................. 4-22
Carrier, rear .................................................................. 4-22
Chassis fasteners ........................................................... 5-6
Cleaning ......................................................................... 9-1
Coolant ................................................................. 5-3, 8-30
Coolant temperature warning light ................................. 4-3DDifferential gear oil ............................................... 5-3, 8-28
Drive select lever .......................................................... 4-15
Drive select lever and driving in reverse ........................ 6-2Drive select lever safety system cable, adjusting ........ 8-43
EEngine break-in .............................................................. 6-4
Engine oil ....................................................................... 5-3
Engine oil and oil filter cartridge .................................. 8-21
Engine stop switch ......................................................... 4-8
Engine trouble warning light .......................................... 4-3
EPS warning light (for EPS model) ................................. 4-4FFinal gear oil ......................................................... 5-3, 8-25
Four-wheel-drive/differential gear lock indicator ........... 4-4
Front and rear brake lever free play, checking ............ 8-46
Fuel ...................................................................... 4-16, 5-3
Fuel tank cap ............................................................... 4-15
Fuses, replacing ........................................................... 8-57HHandlebar switches ....................................................... 4-7
Headlight beam, adjusting ........................................... 8-61
Headlight bulb, replacing ............................................. 8-59
High-range indicator light .............................................. 4-2
Horn switch .................................................................... 4-8IIdentification numbers ................................................. 11-1
Indicator lights and warning lights ................................. 4-2
Instruments, lights and switches ................................... 5-7LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-8
Low-range indicator light ............................................... 4-2
U2UD60E0.book Page 1 Tuesday, April 28, 2015 11:55 AM