Page 73 of 130

8-1
1
2
3
4
5
6
78
9
10
11
EBU28782
PERIODIC MAINTENANCE AND MINOR REPAIR
EBU21670
Safety is an obligation of the owner. Periodic in-
spection, adjustment and lubrication will keep your
ATV in the safest and best operating condition
possible. The most important points of inspection,
adjustment, and lubrication are explained on the
following pages.
The intervals given in the periodic maintenance
and lubrication chart should be considered as a
general guide under normal riding conditions.
However, DEPENDING ON THE WEATHER,
TERRAIN, GEOGRAPHICAL LOCATION, AND
INDIVIDUAL USE, THE MAINTENANCE INTER-
VALS MAY NEED TO BE SHORTENED.
WARNING
EWB01840
Never service an engine while it is running.
Moving parts can catch clothing or parts of the
body, causing injury. Electrical components
can cause shocks or start fires. Turn off the en-
gine when performing maintenance unless
otherwise specified. Have a Yamaha dealer
perform the service if you are not familiar with
maintenance work.
EBU21730
Owner’s manual and tool kit
Be sure to put this owner’s manual in the plastic
bag and always carry it on the bottom of the seat
as shown. Put the owner’s tool kit and low-pres-
sure tire gauge under the seat.
1. Low-pressure tire gauge
2. Owner’s tool kit
3. Owner’s manual
4. Panel
123
4
43
Page 74 of 130
8-2
1
2
3
4
5
6
78
9
10
11
The service information included in this manual
and the tools provided in the owner’s tool kit are in-
tended to assist you in the performance of preven-
tive maintenance and minor repairs. However,
additional tools such as a torque wrench may be
necessary to perform certain maintenance work
correctly.
TIP
If you do not have the tools or experience required
for a particular job, have a Yamaha dealer perform
it for you.
WARNING
EWB01850
Never modify this ATV through improper in-
stallation or use of accessories, as it may
cause changes in handling, which in some sit-
uations could lead to an accident. All parts and
accessories added to this ATV should be gen-
uine Yamaha or equivalent components de-
signed for use on this ATV and should be
installed and used according to instructions. If
you have questions, consult an authorized
Yamaha ATV dealer.
Page 75 of 130

8-3
1
2
3
4
5
6
78
9
10
11
EBU21742
Periodic maintenance chart for the emission control system
TIP
For ATVs not equipped with an odometer or an hour meter, follow the month maintenance intervals.
For ATVs equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance inter-
vals. However, keep in mind that if the ATV isn’t used for a long period of time, the month maintenance
intervals should be followed.
Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools,
data and technical skills.
NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth136612
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 3201
*
Fuel line
Check fuel hoses for cracks or other damage, and
replace if necessary.
√√√
2 Spark plug
Check condition and clean, regap, or replace if
necessary.
√√√√√
3
*
Valves
Check valve clearance and adjust if necessary.
√ √√√
4
*
Carburetor
Check starter (choke) operation and correct if nec-
essary.
Check engine idling speed and adjust if neces-
sary.
√√√√
5
*
Crankcase breather
system
Check breather hose for cracks or other damage,
and replace if necessary.
√√√
Page 76 of 130
8-4
1
2
3
4
5
6
78
9
10
11
6
*
Exhaust system
Check for leakage and replace gasket(s) if neces-
sary.
Check for looseness and tighten all screw clamps
and joints if necessary.
√√√
7 Spark arrester
Clean.
√√√
NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth 1 3 6 6 12
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320
Page 77 of 130

8-5
1
2
3
4
5
6
78
9
10
11
EBU21864
General maintenance and lubrication chart
NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth136612
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 3201 Air filter element
Clean and replace if necessary.Every 20–40 hours (more often in wet or
dusty areas)
2
*
Clutch
Check operation and adjust if necessary.
√ √√√
3
*
Front brake
Check operation and correct if necessary.
Check fluid level and ATV for fluid leakage, and
correct if necessary.
√√√√√
Replace brake pads. Whenever worn to the limit
4
*
Rear brake
Check operation and correct if necessary.
Check fluid level and ATV for fluid leakage, and
correct if necessary.
√√√√√
Replace brake pads. Whenever worn to the limit
5
*
Brake hoses
Check for cracks or other damage, and replace if
necessary.
√√√√
Replace. Every 4 years
6
*
Parking brake
Check operation and adjust if necessary.
√√√√√
7
*
Wheels
Check runout and for damage, and replace if nec-
essary.
√ √√√
8
*
Tires
Check tread depth and for damage, and replace if
necessary.
Check air pressure and balance, and correct if
necessary.
√ √√√
9
*
Wheel hub bearings
Check for looseness or damage, and replace if
necessary.
√ √√√
Page 78 of 130

8-6
1
2
3
4
5
6
78
9
10
11
10
*
Swingarm pivots
Check operation and for excessive play, and
replace bearings if necessary.
Lubricate with lithium-soap-based grease.
√√√
11
*
Upper and lower
arm pivots
Lubricate with lithium-soap-based grease.
√√√
12 Drive chain
Check chain slack and adjust if necessary.
Check rear wheel alignment and correct if necess-
sary.
Clean and lubricate.
√√√√√
13
*
Drive chain rollers
Check for wear and replace if necessary.
√√√
14
*
Chassis fasteners
Make sure that all nuts, bolts, and screws are
properly tightened.
√√√√√
15
*
Shock absorber
assemblies
Check operation and correct if necessary.
Check for oil leakage and replace if necessary.
√√√
16
*
Steering shaft
Lubricate with lithium-soap-based grease.
√√√
17
*
Steering system
Check operation and repair or replace if damaged.
Check toe-in and adjust if necessary.
√√√√√
18
*
Engine mount
Check for cracks or other damage, and replace if
necessary.
√√√
19 Engine oil
Change.
Check ATV for oil leakage, and correct if neces-
sary.
√ √√√
20Engine oil filter ele-
ment
Replace.
√√√
NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth 1 3 6 6 12
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320
Page 79 of 130
8-7
1
2
3
4
5
6
78
9
10
11
21
*
Moving parts and
cables
Lubricate.
√√√√
22
*
Throttle lever hous-
ing and cable
Check operation and correct if necessary.
Check throttle cable free play and adjust if neces-
sary.
Lubricate throttle lever housing and cable.
√√√√√
23
*
Front and rear brake
switches
Check operation and correct if necessary.
√√√√√
24
*
Lights and switches
Check operation and correct if necessary.
Adjust headlight beams.
√√√√√
NO. ITEMCHECK OR MAINTENANCE
JOBINITIAL EVERY
Whichev-
er comes
firstmonth136612
km
(mi)320
(200)1300
(800)2500
(1600)2500
(1600)5000
(3200)
hours 20 80 160 160 320
Page 80 of 130
8-8
1
2
3
4
5
6
78
9
10
11
EBU23070
TIP
The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
Hydraulic brake service
Regularly check and, if necessary, correct the brake fluid level.
Every two years replace the internal components of the brake master cylinders and calipers, and
change the brake fluid.
Replace the brake hoses every four years and if cracked or damaged.