2006 Yamaha Motorsports Big Bear 400 4x4 Owners Manual - Page 110

2006 Yamaha Motorsports Big Bear 400 4x4 Manual

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EBU15731 Periodic maintenance chart for the emission control system NOTE: _ G G 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 intervals. However, keep in mind that if the ATV isn't used for a long period of time, the month maintenance intervals should be followed. G Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and technical skills. _ ITEM ROUTINE Whichever month comes first km (mi) hours 1 320 (200) 20 INITIAL 3 1,300 (800) 80 6 2,500 (1,600) 160 EVERY 6 12 2,500 5,000 (1,600) (3,200) 160 320 Valves* Spark plug* Carburetor* Cylinder head cover breather system* Exhaust system* Spark arrester Fuel line* Check valve clearance. Adjust if necessary. Check condition. Adjust gap and clean. Replace if necessary. Check and adjust idle speed/starter operation. Adjust if necessary. Check breather hose for cracks or damage. Replace if necessary. Check leakage. Tighten if necessary. Replace gasket if necessary. Clean. Check fuel hose for cracks or damage. Replace if necessary. 8-3

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8-3
EBU15731
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 in-
tervals. However, keep in mind that if the ATV isn’t used for a long period of time, the month mainte-
nance 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.
_
ITEM
ROUTINE
Whichever
comes first
INITIAL
EVERY
month
1
3
6
6
12
km
(mi)
320
(200)
1,300
(800)
2,500
(1,600)
2,500
(1,600)
5,000
(3,200)
hours
20
80
160
160
320
Valves*
•
Check valve clearance.
•
Adjust if necessary.
Spark plug*
•
Check condition.
•
Adjust gap and clean.
•
Replace if necessary.
Carburetor*
•
Check and adjust idle speed/starter operation.
•
Adjust if necessary.
Cylinder head cover
breather system*
•
Check breather hose for cracks or damage.
•
Replace if necessary.
Exhaust system*
•
Check leakage.
•
Tighten if necessary.
•
Replace gasket if necessary.
Spark arrester
• Clean.
Fuel line*
•
Check fuel hose for cracks or damage.
•
Replace if necessary.