8-17
8
14. Remove the engine oil tank filler cap, and
then gradually fill the oil tank with the remain-
ing oil quantity while regularly checking the oil
level on the dipstick.
15. Install and tighten the engine oil tank filler cap.
TIPBe sure to wipe off spilled oil on any parts after the
engine and exhaust system have cooled down. NOTICEECB00301In order to prevent clutch slippage (since the
engine oil also lubricates the clutch), do not
mix any chemical additives. Do not use oils
with a diesel specification of “CD” or oils of a higher quality than specified. In addition,
do not use oils labeled “ENERGY CONSERV-
ING II” or higher.
Make sure that no foreign material enters the
crankcase.
16. Start the engine, and then let it idle for several
minutes while checking it for oil leakage. If oil
is leaking, immediately turn the engine off and
check for the cause.
17. Turn the engine off, and then check the oil level and correct it if necessary.EBU23471CoolantThe coolant level should be checked before each
ride. In addition, the coolant must be changed at
the intervals specified in the periodic maintenance
and lubrication chart.EBU27945To check the coolant level1. Place the ATV on a level surface.
Recommended oil:
See page 10-1.
Oil quantity: Without oil filter element replacement:1.75 L (1.85 US qt, 1.54 Imp.qt)
With oil filter element replacement: 1.85 L (1.96 US qt, 1.63 Imp.qt)
U2LS61E0.book Page 17 Friday, April 17, 2015 8:25 AM
8-18
8
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.
3. If the coolant is at or below the minimum levelmark, remove the coolant reservoir cap, add
coolant or distilled water to the maximum lev-
el mark, and then install the reservoir cap.
NOTICE: If coolant is not available, use
distilled water or soft tap water instead.
Do not use hard water or salt water since
they are harmful to the engine. If water has
been used instead of coolant, replace it
with coolant as soon as possible, other-
wise the cooling system will not be pro-
tected 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]
1. Maximum level mark
2. Minimum level mark
12
U2LS61E0.book Page 18 Friday, April 17, 2015 8:25 AM
8-19
8
TIPThe radiator fan is automatically switched on or
off according to the coolant temperature in the
radiator.
If the engine overheats, see page 8-55 for fur-
ther instructions.
EBU23545To 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. Place the ATV on a level surface.
2. Remove panel A. (See page 8-10.)
3. Place a container under the engine, and then
remove the coolant drain bolt and its gasket.
1. Coolant reservoir capCoolant reservoir capacity (up to the maxi-
mum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
1
U2LS61E0.book Page 19 Friday, April 17, 2015 8:25 AM
8-21
8
9. Connect the coolant reservoir hose.
10. Pour the recommended coolant into the res- ervoir to the maximum level mark, and then
install the reservoir cap. NOTICE: Mix anti-
freeze with distilled water only. However, 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 engine.
[ECB00992]
11. Pour the recommended coolant into the radi- ator until it is full.
12. Install the radiator cap, start the engine, let it idle for several minutes, and then turn it off. 13. Remove the radiator cap to check the coolant
level in the radiator. If it is low, add sufficient
coolant until it reaches the top of the radiator,
and then install the radiator cap.
14. Start the engine, and then check for coolant leakage.
TIPIf any leakage is found, have a Yamaha dealer
check the cooling system. 15. Install the panel.EBU26808Cleaning the air filter elementThe air filter element should be cleaned at the in-
tervals specified in the periodic maintenance and
lubrication chart. Clean or, if necessary, replace
the air filter element more frequently if you are rid-
ing in unusually wet or dusty areas.TIPThere is a check hose at the bottom of the air filter
case. If dust or water collects in this hose, empty
the hose and clean the air filter element and air fil-
ter case.
Antifreeze/water mixture ratio:1:1
Recommended antifreeze: High-quality ethylene glycol antifreeze con-
taining corrosion inhibitors for aluminum
engines
Coolant quantity: Radiator (including all routes):1.68 L (1.78 US qt, 1.48 Imp.qt)
Coolant reservoir (up to the maximum level
mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
U2LS61E0.book Page 21 Friday, April 17, 2015 8:25 AM
8-55
8
Engine 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.
U2LS61E0.book Page 55 Friday, April 17, 2015 8:25 AM
10-2
10
Lubrication system:Dry sumpEngine oil:Recommended brand:
YAMALUBE
Type: SAE 5W-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 element replacement: 1.75 L (1.85 US qt, 1.54 Imp.qt)
With oil filter element replacement: 1.85 L (1.96 US qt, 1.63 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):
1.68 L (1.78 US qt, 1.48 Imp.qt)
Air filter:Air filter element:
Wet elementFuel:Recommended fuel:Regular unleaded gasoline only
Fuel tank capacity:
11.0 L (2.90 US gal, 2.42 Imp.gal)
Fuel reserve amount: 2.9 L (0.77 US gal, 0.64 Imp.gal)Fuel injection:Throttle body:
ID mark: 1S3H 10Spark plug (s):Manufacturer/model:NGK/CR8E
Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:Wet, multiple-discTransmission:Primary reduction ratio:
77/34 (2.265)
Secondary reduction system: Chain drive
Secondary reduction ratio: 38/14 (2.714)
0 10 30 50 70 90 110 130 F
–20 –10 0 10 20 30 40 50 CSAE 5W-30
SAE 10W-30
SAE 10W-40
SAE 15W-40
SAE 20W-40SAE 20W-50
U2LS61E0.book Page 2 Friday, April 17, 2015 8:25 AM
10-4
10
Rim size:9 x 8.0ATFront brake:Type:
Disc brake
Operation: Right hand operation
Specified brake fluid: DOT 4Rear brake:Type:Disc brake
Operation: Right foot operation
Specified brake fluid:
DOT 4Front suspension:Type:Double wishbone
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel: 230 mm (9.1 in)Rear suspension:Type:
Swingarm (link suspension)
Spring/shock absorber type: Coil spring/gas-oil damper
Wheel travel: 256 mm (10.1 in)
Electrical system:Ignition system:TCI
Charging system:
AC magnetoBattery:Model:GT9B-4
Voltage, capacity:
12 V, 8.0 AhHeadlight:Bulb type:Krypton bulbBulb voltage, wattage × quantity:Headlight:
12 V, 30.0/30.0 W × 2
Tail/brake light: LED
Neutral indicator light:
LED
Fuel level warning light: LED
Reverse indicator light: LED
Coolant temperature warning light:
LED
Engine trouble warning light: LEDFuses:Main fuse:
30.0 A
U2LS61E0.book Page 4 Friday, April 17, 2015 8:25 AM
12-1
12
INDEX
AAccessories and loading ................................................ 6-7
Air filter element, cleaning ............................................ 8-21BBattery .......................................................................... 8-45
Brake and clutch levers, checking and lubricating ...... 8-41
Brake fluid, changing ...................................................8-33
Brake fluid level, checking ........................................... 8-31
Brake lever ..................................................................... 4-6
Brake lever free play, checking the front ..................... 8-33
Brake light switches ..................................................... 8-36
Brake pads, checking the front and rear ..................... 8-29
Brake pedal .................................................................... 4-7
Brake pedal, checking and lubricating ........................ 8-41
Brake pedal height, checking ...................................... 8-34
Brakes .......................................................................... 8-29
Brakes, front and rear .................................................... 5-4CCables, checking and lubricating ................................. 8-40
Chassis fasteners ........................................................... 5-7
Cleaning ......................................................................... 9-1
Clutch lever .................................................................... 4-6
Clutch lever free play, adjusting ................................... 8-36
Coolant ................................................................. 5-4, 8-17
Coolant temperature warning light ................................. 4-2DDrive chain ..................................................................... 5-5
Drive chain, lubricating ................................................ 8-40
Drive chain slack .......................................................... 8-38
EEngine break-in .............................................................. 6-5
Engine idling speed ...................................................... 8-27
Engine oil ....................................................................... 5-4
Engine oil and oil filter element .................................... 8-13
Engine, start ................................................................... 6-1
Engine stop switch ......................................................... 4-4
Engine trouble warning light .......................................... 4-3FFuel ...................................................................... 4-10, 5-4
Fuel level warning light ................................................... 4-3
Fuel tank cap ............................................................... 4-10
Fuses, replacing ........................................................... 8-48HHandlebar switches ....................................................... 4-4
Headlight beam, adjusting ........................................... 8-51
Headlight bulb, replacing ............................................. 8-50IIdentification numbers ................................................. 11-1
Indicator lights and warning lights ................................. 4-2
Instruments, lights and switches ................................... 5-8LLabel locations ............................................................... 1-1
Light switch .................................................................... 4-4MMain switch .................................................................... 4-1
Maintenance and lubrication chart ................................ 8-5
Maintenance chart, emission control system ................ 8-3
Model label .................................................................. 11-1
U2LS61E0.book Page 1 Friday, April 17, 2015 8:25 AM