Page 10 of 150

Checking and lubricating the brake and clutch levers ............................................ 9-41
Checking the shift pedal ........................... 9-41
Checking and lubricating the brake  pedal ....................................................... 9-41
Checking the wheel hub bearings............. 9-42
Lubricating the swingarm pivots ............... 9-42
Lubricating the rear suspension relay arm  and connecting arm pivoting points ....... 9-43
Lubricating the upper and lower arm  pivots ...................................................... 9-44
Lubricating the steering shaft ................... 9-45
Battery....................................................... 9-45
Replacing a fuse ....................................... 9-49
Replacing a headlight bulb ....................... 9-50
Adjusting a headlight beam ...................... 9-52
Brake/tail light ........................................... 9-52
Removing a wheel ..................................... 9-52
Installing a wheel....................................... 9-53
Troubleshooting ........................................ 9-54
Troubleshooting charts ............................. 9-55
CLEANING AND STORAGE ......................... 10-1 Cleaning .................................................... 10-1
Storage...................................................... 10-2 SPECIFICATIONS ........................................ 11-1
INDEX .......................................................... 12-1
UBCX61E0.book  Page 3  Friday, January 22, 2021  1:54 PM 
     
        
        Page 22 of 150

3-5
3ungrounded or broken wiring. Visually check
for broken wiring and leaking fuel. Leaking
fuel can be confirmed by the odor of gasoline.
4. Once immediate safety hazards are con- firmed not to exist, you may remove your hel-
met to more closely inspect your vehicle.
Check for external signs of wear, broken
parts, fluid leaks, cracks in the frame, sus-
pension damage, wheel damage, and so on.
Fuel, oil, and coolant usually give off a notice-
able odor.
5. If your vehicle will not restart or if it is unsafe to ride, then turn off all vehicle systems (en-
gine stop switch, main switch, and fuel cock),
and then signal or go for help.
Aftermarket Parts, Accessories, and Modifica-
tions
While you may find aftermarket products similar in
design and quality to genuine Yamaha accesso-
ries, recognize that some aftermarket accessories
or modifications are not suitable because of po-
tential safety hazards to you or others. Installing
aftermarket products or having other modifica-
tions performed to your vehicle that change any of
the vehicle’s design or operation characteristics
can put you and others at greater risk of serious injury or death. You are responsible for injuries re-
lated to changes in the vehicle. Keep the following
guidelines in mind, as well as those found in the
Loading section (page 7-7) when mounting acces-
sories.
Never install accessories that would impair the
performance of your ATV. Carefully inspect the
accessory before using it to make sure that it
does not in any way reduce ground clearance,
limit suspension travel, steering travel or control
operation.
 Accessories fitted to the ATV can create insta-
bility due to improper weight distribution.
 Bulky or large accessories may seriously affect
the stability of the ATV.
 Certain accessories can displace the operator
from his or her normal riding position. This im-
proper position limits the freedom of movement
of the operator and may limit control ability,
therefore, such accessories are not recom-
mended.
 Use caution when adding electrical accesso-
ries. If electrical accessories exceed the capac-
ity of the ATV’s electrical system, an electric
failure could result, which could cause a dan-
UBCX61E0.book  Page 5  Friday, January 22, 2021  1:54 PM 
     
        
        Page 37 of 150

5-12
5
To install the seat
Fit the slot in the seat onto the projection on the
fuel tank, insert the projection on the front of the
seat into the seat holder, and then push on the
seat at the rear. Make sure that the seat is securely
fitted.
EBU30055Front shock absorbers The shock absorber spring preload, rebound
damping force, and compression damping force
(fast and slow compression damping) can be ad-
justed.
WARNING
EWB02492
Suspension components become hot during
operation. Never touch the compression
damping force adjusting bolt and screw, the
rebound damping force adjusting screw or
the oil reservoir with your bare hand or skin
until suspension components have cooled.
 Always adjust the shock absorber assem-
blies on the left and right side to the same
setting. Uneven adjustment can cause poor
handling and loss of stability, which could
lead to an accident. Notes on adjusting the suspension
A special wrench can be obtained at a Yamaha
dealer to make the spring preload adjustment.
 When adjusting the damping force settings, turn
the adjuster in direction (a) until it stops, and
then count the turns or clicks in direction (b).
 Although a damping force adjuster may turn or
click beyond the stated minimum settings, such
adjustments are ineffective and may damage
the suspension.
1. Slot
2. Projection
3. Seat holder
1
2
3
2
UBCX61E0.book  Page 12  Friday, January 22, 2021  1:54 PM 
     
        
        Page 38 of 150
5-13
5
NOTICEECB00091Never turn an adjusting mechanism beyond
the minimum and maximum settings. Spring preload1. Elevate the vehicle and place a suitable stand under the frame.
2. Loosen the locknut.
3. Turn the spring preload adjusting nut in direc- tion (a) to increase the spring preload and
thereby harden the suspension. Turn in direc-
tion (b) to decrease the spring preload and
thereby soften the suspension.
TIPThe spring preload setting is determined by
measuring distance A, shown in the illustration.
 The shorter distance A is, the greater the spring
preload. The longer distance A is, the lesser the
spring preload.
 Each complete turn of the adjusting nut chang-
es distance A by 1.5 mm (0.06 in). 1. Spring preload adjusting nut
2. Locknut
3. Special wrench
2
1
3
(a)
(b)
UBCX61E0.book  Page 13  Friday, January 22, 2021  1:54 PM 
     
        
        Page 42 of 150

5-17
5
WARNING
EWB02681Suspension components become hot during
operation. Never touch the compression
damping force adjusting bolt and screw, the
rebound damping force adjusting screw or the
oil reservoir with your bare hand or skin until
the suspension components have cooled. Notes on adjusting the suspension
A special wrench can be obtained at a Yamaha
dealer to make the spring preload adjustment.
 When adjusting the damping force settings, turn
the adjuster in direction (a) until it stops, and
then count the turns or clicks in direction (b).
 Although a damping force adjuster may turn or
click beyond the stated minimum settings, such
adjustments are ineffective and may damage
the suspension.NOTICEECB00091Never turn an adjusting mechanism beyond
the minimum and maximum settings. 
Spring preload
1. Elevate the vehicle and place a suitable stand under the frame.
2. Loosen the locknut.
3. Turn the spring preload adjusting nut in direc- tion (a) to increase the spring preload and
thereby harden the suspension. Turn in direc-
tion (b) to decrease the spring preload and
thereby soften the suspension.1. Spring preload adjusting nut
2. Locknut
3. Special wrench
1
(b)
(a)
2
3
UBCX61E0.book  Page 17  Friday, January 22, 2021  1:54 PM 
     
        
        Page 90 of 150

9-7
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 
     
        
        Page 126 of 150
9-43
9
EBU25007Lubricating the rear suspension relay 
arm and connecting arm pivoting 
pointsThe rear suspension relay arm and connecting
arm pivoting points must be lubricated at the inter-
vals specified in the periodic maintenance chart.Recommended lubricant:Lithium-soap-based grease1. Grease nipple
1
1. Grease nipple
1. Grease nipple
1
1
UBCX61E0.book  Page 43  Friday, January 22, 2021  1:54 PM 
     
        
        Page 146 of 150
11-4
11
Front suspension:Type:Double wishbone
Spring:
Coil spring
Shock absorber: Gas-hydraulic damper
Wheel travel: 230 mm (9.1 in)Rear suspension:Type:Swingarm (link suspension)
Spring: Coil spring
Shock absorber:
Gas-hydraulic damper
Wheel travel: 256 mm (10.1 in)Electrical system:System voltage:
12 V
Ignition system: TCI
Charging system: AC magnetoBattery:Model:GT9B-4
Voltage, capacity: 12 V, 8.0 Ah
Lights:Headlight:T19L, 30.0 W/30.0 W
Brake/tail 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
Headlight fuse: 10.0 A
Signaling system fuse:
10.0 A
Ignition fuse: 10.0 A
Fuel injection system fuse: 10.0 A
Radiator fan motor fuse:
20.0 A
UBCX61E0.book  Page 4  Friday, January 22, 2021  1:54 PM