EBU17421
TABLE OF CONTENTS
VEHICLE IDENTIFICATION ............................ 1-1Identification numbers ................................ 1-1
LOCATION OF THE WARNING AND
SPECIFICATION LABELS .............................. 2-1
SAFETY INFORMATION ................................ 3-1
DESCRIPTION................................................ 4-1 Left view ...................................................... 4-1
Right view.................................................... 4-1
Controls and instruments............................ 4-2
INSTRUMENT AND CONTROL
FUNCTIONS ................................................... 5-1 Main switch ................................................. 5-1
Indicator lights and warning lights .............. 5-1
Self-diagnostic device................................. 5-3
Handlebar switches .................................... 5-3
Throttle lever ............................................... 5-4
Speed limiter ............................................... 5-5
Clutch lever ................................................. 5-5
Brake lever .................................................. 5-6
Brake pedal ................................................. 5-6 Parking brake lever ..................................... 5-7
Shift pedal................................................... 5-8
Reverse knob “REV” ................................... 5-8
Fuel tank cap .............................................. 5-9
Fuel ........................................................... 5-10
Seat .......................................................... 5-11
Front shock absorbers ............................ 5-12
Rear shock absorber assembly ................ 5-16
PRE-OPERATION CHECKS .......................... 6-1 Fuel ............................................................. 6-4
Engine oil .................................................... 6-4
Coolant ....................................................... 6-4
Front and rear brakes ................................. 6-4
Throttle lever ............................................... 6-5
Drive chain .................................................. 6-5
Tires ............................................................ 6-5
Chassis fasteners ....................................... 6-7
Instruments, lights and switches ................ 6-7
OPERATION .................................................. 7-1 Starting the engine ..................................... 7-1
Shifting........................................................ 7-2UBCX61E0.book Page 1 Friday, January 22, 2021 1:54 PM
Operating the reverse knob and driving in reverse ...................................................... 7-4
Engine break-in ........................................... 7-5
Parking ........................................................ 7-5
Parking on a slope ...................................... 7-6
Accessories and loading ............................. 7-6
RIDING YOUR ATV ........................................ 8-1 GETTING TO KNOW YOUR ATV ................ 8-2
RIDE WITH CARE AND GOOD JUDGMENT .............................................. 8-2
BE CAREFUL WHERE YOU RIDE ............... 8-8
TURNING YOUR ATV................................ 8-11
CLIMBING UPHILL ................................... 8-13
RIDING DOWNHILL .................................. 8-16
CROSSING A SLOPE................................ 8-17
CROSSING THROUGH SHALLOW WATER .................................................... 8-18
RIDING OVER ROUGH TERRAIN ............. 8-20
SLIDING AND SKIDDING.......................... 8-20
WHAT TO DO IF... ..................................... 8-21
PERIODIC MAINTENANCE AND
ADJUSTMENT................................................ 9-1 Owner’s Manual and tool kit ....................... 9-2
Periodic maintenance chart: Emission control system .......................................... 9-3 Periodic maintenance chart: General
maintenance and lubrication .................... 9-5
Removing and installing the panel............ 9-10
Checking the spark plug........................... 9-10
Engine oil and oil filter element................. 9-12
Why Yamalube ......................................... 9-17
Coolant ..................................................... 9-18
Cleaning the air filter element ................... 9-21
Cleaning the spark arrester ...................... 9-25
Adjusting the engine idling speed ............ 9-27
Adjusting the throttle lever free play ......... 9-28
Valve clearance......................................... 9-29
Adjusting the reverse lock release cable ....................................................... 9-29
Brakes....................................................... 9-29
Checking the front and rear brake pads... 9-29
Checking the brake fluid level .................. 9-30
Changing the brake fluid .......................... 9-33
Checking the front brake lever free play... 9-33
Checking the brake pedal height.............. 9-34
Adjusting the parking brake free play ....... 9-34
Brake light switches ................................. 9-36
Adjusting the clutch lever free play .......... 9-36
Drive chain slack....................................... 9-38
Lubricating the drive chain ....................... 9-40
Checking and lubricating the cables ........ 9-40
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4
EBU17681
DESCRIPTION
EBU17691Left view
EBU17701Right view
1. Engine oil tank
2. Coolant reservoir
3. Fuel tank cap
4. Idle adjusting screw
5. Battery
6. Fuses
7. Rear shock absorber
8. Drive chain
9. Footrest
10.Shift pedal
12
4
3
659
10
7
8
1. Muffler
2. Spark arrester
3. Air filter
4. Rear brake fluid reservoir
5. Crankcase engine oil filler bolt
6. Oil filter element
7. Spark plug
8. Front shock absorber
9. Crankcase engine oil drain bolt
10.Brake pedal
11.Footrest
12.Rear brake light switch
21
34
5678
109
11
12
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6-1
6
EBU19203
PRE-OPERATION CHECKS
EBU19227Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always
follow the inspection and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWB00482Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equip-
ment damage. Do not operate the vehicle if you find any problem. If a problem cannot be corrected
by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer. Before using this vehicle, check the following points:
ITEMROUTINE PAGE
Fuel • Check fuel level in fuel tank,
and add recommended fuel if neces-
sary.
• Check fuel line for leakage. Correct if necessary. 5-10, 6-4
Engine oil • Check oil level in engine oil tank, and add recommended oil to
specified level if necessary.
• Check ATV for oil leakage. Correct if necessary. 6-4, 9-12
Coolant • Check coolant level in reservoir, and add recommended coolant to
specified level if necessary.
• Check cooling system for leakage. Correct if necessary. 6-4, 9-18
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6
EBU38000FuelMake sure there is sufficient gasoline in the tank
before starting off. Refuel if necessary. (See page
5-10.)EBU19561Engine oilMake sure that the engine oil is at the specified
level. Add oil as necessary. (See page 9-12.)EBU19632CoolantMake sure that the coolant is at the specified level.
Add coolant as necessary. (See page 9-18.)TIPThe coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture. EBU19713Front and rear brakesBrake lever and brake pedal
Check that there is no free play in the brake le-
ver. If there is free play, have a Yamaha dealer
check the brake system.
Check for correct brake pedal height. (See page
9-34.) If the pedal height is incorrect, have a
Yamaha dealer adjust it.
Check the operation of the lever and pedal.
They should move smoothly and there should
be a firm feeling when the brakes are applied. If
not, have a Yamaha dealer check the brake sys-
tem.
Brake fluid level
Check the brake fluid level. Add fluid if necessary.
(See page 9-30.)
Brake fluid leakage
Check to see if any brake fluid is leaking out of the
pipe joints or brake fluid reservoirs. Apply the
brakes firmly for one minute. If there is any leak-
age, have a Yamaha dealer check the brake sys-
tem. Specified brake fluid:
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9
14*Drive chain roller • Check for wear and replace if necessary. √√√
15 *Chassis fasteners • Make sure that all nuts, bolts, and screws are
properly tightened. √√√√√
16 *Shock absorber as-
semblies • Check operation and correct if necessary.
• Check for oil leakage and replace if necessary.
√√√
17 *Rear suspension re-
lay arm and con-
necting arm
pivoting points • Check operation and correct if necessary.
• Lubricate with lithium-soap-based grease.
√√√√
18 *Steering shaft • Lubricate with lithium-soap-based grease. √√√
19 *Steering system • Check operation and repair or replace if dam-
aged.
• Check toe-in and adjust if necessary. √√√√√
20 *Engine mounts • Check for cracks or other damage, and replace if
necessary. √√√
21 Engine oil • Change.
• Check ATV for oil leakage, and correct if neces-
sary. √ √√√
22 Engine oil filter ele-
ment • Replace.
√√√
NO. ITEM
CHECK OR MAINTENANCE
JOB INITIAL EVERY
Whichev-
er comes first month 1
36612
km (mi) 240
(150) 1
300
(800) 2500
(1600) 2500
(1600) 5000
( 3 200)
hours 20 80 160 160 320UBCX61E0.book Page 7 Friday, January 22, 2021 1:54 PM
9-12
9
2. Check the spark plug for electrode erosion
and excessive carbon or other deposits, and
replace it if necessary.
3. Measure the spark plug gap with a wire thick- ness gauge and, if necessary, adjust the gap
to specification. To install the spark plug
1. Clean the surface of the spark plug gasket and its mating surface, and then wipe off any
grime from the spark plug threads.
2. Install the spark plug with the spark plug wrench, and then tighten it to the specified
torque.
TIPIf a torque wrench is not available when installing
the spark plug, a good estimate of the correct
torque is 1/4–1/2 turn past finger tight. However,
the spark plug should be tightened to the speci-
fied torque as soon as possible. 3. Install the spark plug cap.EBU2678DEngine oil and oil filter elementThe engine oil level should be checked before
each ride. In addition, the oil must be changed and
the oil filter element replaced at the intervals spec-
ified in the periodic maintenance chart.
Specified spark plug:
NGK/CR8E
1. Spark plug gapSpark plug gap:0.7–0.8 mm (0.028–0.031 in)
Tightening torque:Spark plug:13 N·m (1.3 kgf·m, 9.6 lb·ft)
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9-13
9To check the engine oil level
1. Park the ATV on a level surface.
2. Start the engine, warm it up until the engine oil has reached a normal temperature of 60
°C (140 °F), let it continue to idle for ten sec-
onds or more, and then turn the engine off.
TIPTo achieve the proper engine oil temperature for
an accurate oil level reading, the engine must have
first completely cooled down, and then warmed
up again for several minutes to normal operating
temperature. 3. Remove the engine oil tank filler cap, andthen wipe the engine oil dipstick off with a
clean rag.
4. Insert the dipstick in the filler hole (without screwing it in), and then remove it again to
check the oil level.TIPThe engine oil should be between the minimum
and maximum level marks.
5. If the engine oil is at or below the minimumlevel mark, add sufficient oil of the recom-
mended type through the engine oil tank filler
hole to raise it to the correct level. NOTICE:
Be sure the engine oil is at the correct lev-
el, otherwise engine damage may result.
[ECB00852]
1. Engine oil tank
2. Engine oil tank filler cap
3. O-ring
4. Engine oil dipstick
5. Maximum level mark
6. Minimum level mark
23
4
5
6 1
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