8-3
1
2
3
4
5
6
7
8
9
10
11
EBU21742
Periodic maintenance chart for the emission control system
NOTE:
●
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
CHECK OR MAINTENANCE
JOB
INITIAL
EVERY
Whichev-
er comes
first
month
1
3
6
6
12
km
(mi)
320
(200)
1300
(800)
2500
(1600)
2500
(1600)
5000
(3200)
hours
20
80
160
160
320
1
*
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
*
Fuel injection
●
Check and adjust engine idle speed.
√
√
√
√
√
5
*
Crankcase breather
system
●
Check breather hose for cracks or other damage,
and replace if necessary.
√
√
√
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.
√
√
√
