
9-17
914. 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. Check the O-ring for damage, and replace it if necessary.
16. 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.
17. 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.
18. Turn the engine off, and then check the oil level and correct it if necessary.EBU38620Why YamalubeYAMALUBE oil is a Genuine YAMAHA Part born ofthe engineers’ passion and belief that engine oil is
an important liquid engine component. We form
teams of specialists in the fields of mechanical en-
gineering, chemistry, electronics and track test-
ing, and have them develop the engine together
with the oil it will use. Yamalube oils take full ad-
vantage of the base oil’s qualities and blend in the
ideal balance of additives to make sure the final oil
clears our performance standards. Thus,
Yamalube mineral, semi synthetic and synthetic
Recommended oil:
See page 11-1.
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)
UBCX61E0.book Page 17 Friday, January 22, 2021 1:54 PM

9-36
9
EBU24744Brake light switchesThe brake light, which is activated by the brake
pedal and brake lever, should come on just before
braking takes effect.
The brake light switch for the brake pedal can be
adjusted as follows, but the front brake light
switch should be adjusted by a Yamaha dealer.
Turn the rear brake light switch adjusting nut while
holding the brake light switch in place. To make
the brake light come on earlier, turn the adjusting
nut in direction (a). To make the brake light come
on later, turn the adjusting nut in direction (b).
EBU29753Adjusting the clutch lever free playPeriodically check the clutch lever free play and
adjust if necessary.1. Slide the rubber cover back.
2. Loosen the locknut at the clutch lever.
1. Rear brake light switch
2. Rear brake light switch adjusting nut
1
2
(a)
(b)
1. Rubber cover
2. Clutch lever free play adjusting bolt
3. Locknut
4. Clutch lever free playClutch lever free play: 8.0…13.0 mm (0.31…0.51 in)
3
1
2
(a)
(b)
4
UBCX61E0.book Page 36 Friday, January 22, 2021 1:54 PM

9-37
93. To increase the clutch lever free play, turn the
adjusting bolt at the clutch lever in direction
(a), and to decrease it, turn the bolt in direc-
tion (b).
TIPIf the specified clutch lever free play could be ob-
tained as described above, skip steps 4–7. 4. Fully turn the adjusting bolt at the clutch leverin direction (a) to loosen the clutch cable.
5. Loosen the locknut at the crankcase.
6. To increase the clutch lever free play, turn the adjusting nut at the crankcase in direction (a),
and to decrease it, turn the nut in direction (b). 7. Tighten the locknut at the crankcase.
8. Tighten the locknut at the clutch lever, and
then slide the rubber cover to its original po-
sition.
TIPIf the specified free play cannot be obtained as de-
scribed above or if the clutch does not operate
correctly, have a Yamaha dealer check the internal
clutch mechanism. 1. Locknut
2. Clutch lever free play adjusting nut
1
2
(a)
(b)
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9-41
9
WARNING
EWB02582Inspect cables frequently and replace if
damaged. Corrosion can result when the ca-
ble sheaths become damaged, and cables
can also become frayed or kinked, which
could restrict the operation of controls and
lead to an accident or injury.
Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or
do not work smoothly, you could be unable
to control the ATV, which could lead to an
accident or collision. EBU24923Checking and lubricating the brake
and clutch leversThe operation of the brake and clutch levers
should be checked before each ride, and the lever
pivots should be lubricated if necessary.
EBUM0171Checking the shift pedalThe operation of the shift pedal should be
checked before each ride. If operation is not
smooth, have a Yamaha dealer check the vehicle.EBU28872Checking and lubricating the brake
pedalThe operation of the brake pedal should be
checked before each ride, and the pedal pivot
should be lubricated if necessary.Recommended lubricants:
Brake lever:Silicone grease
Clutch lever: Lithium-soap-based grease
Recommended lubricant: Lithium-soap-based grease
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11-3
11
Drivetrain:Primary reduction ratio:2.265 (77/34)
Secondary reduction ratio:
2.714 (38/14)
Final drive: Chain
Clutch type: Wet, multiple-disc
Transmission type:
5-speed with reverse
Gear ratio: 1st:
2.923 (38/13)
2nd: 2.000 (28/14)
3rd: 1.471 (25/17)
4th:
1.136 (25/22)
5th: 0.917 (22/24)
Reverse gear: 4.462 (24/13 x 29/12)Front tire:Size:AT22 x 7-10
Manufacturer/model: MAXXIS/MS13Rear tire:Size:AT20 x 10-9 Manufacturer/model:
MAXXIS/M976Y
Tire air pressure (measured on cold tires):Vehicle load:
0.0–100.0 kg (0–220 lb)
Recommended: Front:
27.5 kPa (0.275 kgf/cm², 4.0 psi)
Rear: 27.5 kPa (0.275 kgf/cm², 4.0 psi)
Minimum: Front:24.5 kPa (0.245 kgf/cm², 3.6 psi)
Rear: 24.5 kPa (0.245 kgf/cm², 3.6 psi)Front wheel:Rim size:10 x 5.5ATRear wheel:Rim size:
9 x 8.0ATFront brake:Type:Hydraulic disc brakeRear brake:Type:Hydraulic disc brakeBrake fluid:Specified brake fluid:
DOT 4
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12-1
12
INDEX
AAccessories and loading ................................................ 7-6
Air filter element, cleaning ............................................ 9-21BBattery .......................................................................... 9-45
Brake and clutch levers, checking and lubricating ...... 9-41
Brake fluid, changing ...................................................9-33
Brake fluid level, checking ........................................... 9-30
Brake lever ..................................................................... 5-6
Brake lever free play, checking the front ..................... 9-33
Brake light switches ..................................................... 9-36
Brake pads, checking the front and rear ..................... 9-29
Brake pedal .................................................................... 5-6
Brake pedal, checking and lubricating ........................ 9-41
Brake pedal height, checking ...................................... 9-34
Brakes .......................................................................... 9-29
Brakes, front and rear .................................................... 6-4
Brake/tail light .............................................................. 9-52CCables, checking and lubricating ................................. 9-40
Chassis fasteners ........................................................... 6-7
Cleaning ....................................................................... 10-1
Clutch lever .................................................................... 5-5
Clutch lever free play, adjusting ................................... 9-36
Coolant ................................................................. 6-4, 9-18
Coolant temperature warning light ................................. 5-2DDrive chain ..................................................................... 6-5
Drive chain, lubricating ................................................ 9-40 Drive chain slack .......................................................... 9-38
EEngine break-in .............................................................. 7-5
Engine idling speed ...................................................... 9-27
Engine oil ....................................................................... 6-4
Engine oil and oil filter element .................................... 9-12
Engine, start ................................................................... 7-1
Engine stop switch ......................................................... 5-4
Engine trouble warning light .......................................... 5-3FFuel ...................................................................... 5-10, 6-4
Fuel level warning light ................................................... 5-2
Fuel tank cap ................................................................. 5-9
Fuses, replacing ........................................................... 9-49HHandlebar switches ....................................................... 5-3
Headlight beam, adjusting ........................................... 9-52
Headlight bulb, replacing ............................................. 9-50IIdentification numbers ................................................... 1-1
Indicator lights and warning lights ................................. 5-1
Instruments, lights and switches ................................... 6-7LLabel locations ............................................................... 2-1
Light switch .................................................................... 5-4MMain switch .................................................................... 5-1
Maintenance chart, emission control system ................ 9-3
UBCX61E0.book Page 1 Friday, January 22, 2021 1:54 PM