4-6
4
The multi-function display is equipped with the
following:
speedometer
odometer
two tripmeters
clock
hour meter
fuel gauge
error code display
Speedometer
The speedometer shows the vehicle’s traveling
speed. The speedometer can be set to “mph” or
“km/h”. This also changes the odometer and trip-
meter units between miles and kilometers. To
change the display between “mph” and “km/h”,
turn the key to “ ” (off), then while holding the
“SELECT” button pushed, turn the key to “ ”
(on).
Odometer and tripmeters
The odometer shows the total distance traveled
by the vehicle. The odometer can be used for
maintenance and service intervals. The tripmeters show the distance traveled since
they were last reset. The tripmeters can be used to
record the distance traveled on a single trip, or to
estimate the distance that can be traveled with a
full tank of gas, etc.
Push the “SELECT” button to switch between the
odometer “ODO” and the tripmeters “TRIP A” and
“TRIP B” in the following order:
ODO
→ TRIP A → TRIP B → ODO
To reset a tripmeter, set the display to the tripme-
ter you want to reset, then push the “RESET” but-
ton for three seconds.
TIP The odometer will lock at 99999.
The tripmeters will reset and continue counting
after 9999.9 is reached. Clock and hour meter
The clock displays time in 12-hour format.
The hour meter shows the total time the engine
has been running.
Push the “CLOCK” button to switch between the
clock “CLOCK” and the hour meter mode
“HOUR” in the following order:
CLOCK → HOUR → CLOCK
UB1662E0.book Page 6 Monday, April 17, 2017 11:39 AM
8-1
8
EBU28788
PERIODIC MAINTENANCE AND ADJUSTMENT
EBU21677Periodic inspection, adjustment, and lubrication
will keep your vehicle in the safest and most effi-
cient condition possible. Safety is an obligation of
the vehicle owner and operator. The most impor-
tant points of vehicle inspection, adjustment, and
lubrication are explained on the following pages.
WARNING
EWB01842Failure to properly maintain the vehicle or per-
forming maintenance activities incorrectly may
increase your risk of injury or death during ser-
vice or while using the vehicle. If you are not fa-
miliar with vehicle service, have a Yamaha
dealer perform the service.
WARNING
EWB02563Turn off the engine when performing mainte-
nance unless otherwise specified.
A running engine has moving parts that can
catch on body parts or clothing and electri-
cal parts that can cause shocks or fires.
Running the engine while servicing can lead
to eye injury, burns, fire, or carbon monoxide
poisoning - possibly leading to death. See
page 2-6 for more information about carbon
monoxide.
WARNING
EWB02691Brake discs, calipers, drums, and linings can
become very hot during use. To avoid possible
burns, let brake components cool before
touching them. The intervals given in the periodic maintenance
charts should be considered as a general guide
under normal riding conditions. However, DE-
PENDING ON THE WEATHER, TERRAIN, GEO-
GRAPHICAL LOCATION, AND INDIVIDUAL USE,
THE MAINTENANCE INTERVALS MAY NEED TO
BE SHORTENED.
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8-2
8
EBU29572Owner’s manual and tool kitBe sure to always keep the owner’s manual, the
owner’s tool kit and the low-pressure tire gauge
with the vehicle. Make sure to protect the owner’s
manual by putting it in the plastic bag, then by
placing the bag in the document pouch.
The service information included in this manual
and the tools provided in the owner’s tool kit are
intended to assist you in the performance of pre-
ventive maintenance and minor repairs. However,additional tools such as a torque wrench may be
necessary to perform certain maintenance work
correctly.
TIPIf you do not have the tools or experience required
for a particular job, have a Yamaha dealer perform
it for you.
1. Owner’s manual
2. Owner’s tool kit
3. Low-pressure tire gauge
1
2
3
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8-8
8
EBU28392TIPSome maintenance items need more frequent service if you are riding in unusually wet, dusty, sandy or
muddy areas, or at full-throttle.
Hydraulic brake service
• Regularly check and, if necessary, correct the brake fluid level.
• Every two years replace the internal components of the brake master cylinder and calipers, and chan-
ge the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged. 23 *Moving parts and
cables •Lubricate.
√√√√
24 *Throttle lever • Check operation.
• Check throttle lever free play, and adjust if neces-
sary.
• Lubricate cable and lever housing. √√√√√
25 *Front and rear
brake switches • Check operation and correct if necessary.
√√√√√
26 *Lights and switches • Check operation and correct if necessary.
• Adjust headlight beams. √√√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev- er comes first month136612
km (mi) 320
(200) 1300
(800) 2500
(1600) 2500
(1600) 5000
(3200)
hours 20 80 160 160 320UB1662E0.book Page 8 Monday, April 17, 2017 11:39 AM
8-42
8
3. To increase the throttle lever free play, turn
the throttle lever free play adjusting bolt in di-
rection (a). To decrease the throttle lever free
play, turn the adjusting bolt in direction (b).
4. Tighten the locknut.
5. Slide the rubber cover to its original position.
EBU24061Valve clearanceThe valve clearance changes with use, resulting in
improper air-fuel mixture and/or engine noise. To
prevent this from occurring, the valve clearance
must be adjusted by a Yamaha dealer at the inter-
vals specified in the periodic maintenance and lu-
brication chart.EBU29602BrakesReplacement of brake components requires pro-
fessional knowledge. Brake service should be
performed by a Yamaha dealer.
WARNING
EWB02572Operating with improperly serviced or adjust-
ed brakes could lead to a loss in braking ability
and an accident.
EBU28414Checking the front brake pads and rear
brake friction platesThe front brake pads and the rear brake friction
plates must be checked for wear at the intervals
specified in the periodic maintenance and lubrica-
tion chart.TIPThis ATV is equipped with a wet, multiple-disc
type rear brake, which is located inside of the final
gear case. EBUM0191Front brake pads
Each brake pad is provided with a wear indicator
groove, which allows you to check the brake pad
wear without having to disassemble the brake. To
check the brake pad wear, check the wear indica-
tor groove. If a brake pad has worn to the point
that the wear indicator groove has almost disap-
peared, have a Yamaha dealer replace the brake
pads as a set.
UB1662E0.book Page 42 Monday, April 17, 2017 11:39 AM
8-53
8YFM70KDXJ / YFM70KDHJ
YFM70KPXJ / YFM70KPAJ / YFM70KPHJ /
YFM70KPSJ
TIPFor parts equipped with a grease nipple, use a
grease gun. EBU2904FBatteryThis model is equipped with a 12-volt VRLA
(valve-regulated lead-acid) battery. There is no
need to check the electrolyte or to add distilled
water. However, the battery lead connections
need to be checked and tightened, and the bat-
tery terminals cleaned if corroded. If the battery
seems to have discharged, recharge it as soon as
possible.TIP
Wear gloves and eye protection in a ventilated
area away from sparks and open flames. Wash
hands after handling.
It is recommended to have the battery serviced
by a Yamaha dealer.
UB1662E0.book Page 53 Monday, April 17, 2017 11:39 AM
8-65
82. Lower the ATV to the ground.
3. Tighten the wheel nuts to the specified
torques.
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.
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
UB1662E0.book Page 65 Monday, April 17, 2017 11:39 AM
10-2
10
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
UB1662E0.book Page 2 Monday, April 17, 2017 11:39 AM