EBU21744
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.
ITEM
8
1
*
Fuel line
2
Spark plug
3
*
Valves
4
*
Carburetor
Crankcase breath-
5
*
er system
CHECK OR MAINTENANCE
JOB
• Check fuel hoses for cracks or other damage, and
replace if necessary.
• Check condition and clean, regap, or replace if
necessary.
• Check valve clearance and adjust if necessary.
• Check starter (choke) operation and correct if
necessary.
• Check engine idling speed and adjust if neces-
sary.
• Check breather hose for cracks or other damage,
and replace if necessary.
month
1
Whichev-
er comes
320
km (mi)
first
(200)
hours
20
√
√
8-3
INITIAL
EVERY
3
6
6
1300
2500
2500
5000
(800)
(1600)
(1600)
(3200)
80
160
160
√
√
√
√
√
√
√
√
√
√
√
√
12
320
√
√
√
√
√