8-3
8
EBU21743
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
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
*
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.
√
√
√
U1P066E0.book Page 3 Thursday, August 5, 2010 4:15 PM
Summary of Contents for big bear 250 YFM25BA
Page 2: ...PRINTED IN USA 2010 08 0 3 1 CR E F S YAMAHA MOTOR CO LTD DIC183 ...
Page 17: ...1 7 1 For Oceania U1P066E0 book Page 7 Thursday August 5 2010 4 15 PM ...
Page 19: ...1 9 1 16 UNDER 7 6 U1P066E0 book Page 9 Thursday August 5 2010 4 15 PM ...
Page 57: ...7 1 7 EBU21141 RIDING YOUR ATV U1P066E0 book Page 1 Thursday August 5 2010 4 15 PM ...
