8-7
EBU02621
PERIODIC MAINTENANCE/LUBRICATION
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 intervals. How-
ever, keep in mind that if the ATV isn’t used for a long period of time, the month maintenance intervals should be
followed.
_
ITEM ROUTINEWhichever
comes firstINITIAL EVERY
month136612
km
(mi)320
(200)1,200
(750)2,400
(1,500)2,400
(1,500)4,800
(3,000)
hours 20 75 150 150 300
Valves*Check valve clearance.
Adjust if necessary.
Spark plugCheck condition.
Adjust gap and clean.
Replace if necessary.Air filter elementClean.
Replace if necessary.Every 20–40 hours
(More often in wet or dusty areas.)
Carburetor*Check starter (choke) operation.
Adjust engine idling speed.Crankcase breather
system*Check breather hose for cracks or damage.
Replace if necessary.Exhaust system*Check for leakage.
Tighten if necessary.
Replace gasket(s) if necessary.Fuel line*Check fuel hose for cracks or damage.
Replace if necessary.Engine oil
Replace. (Warm engine before draining.)Engine oil filter elementClean.
Replace if necessary.U5YT61.book Page 7 Wednesday, April 7, 2004 3:59 PM
10-3
Quantity:
Without oil filter element replacement
With oil filter element replacement2.50 L
2.60 L
Air filter: Wet element
Fuel:
Type
Tank capacity
Reserve amountUnleaded gasoline only
For Europe: Regular unleaded gasoline only with a
research octane number of 91 or higher
9.0 L
2.7 L
Carburetor:
Type
× quantity
ManufacturerBSR36
× 1
MIKUNI
Spark plug:
Type/manufacturer
GapDR8EA / NGK
0.6–0.7 mm
Clutch:
Type
OperationWet, Multiple-disc
Left hand operation
Transmission:
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Transmission type
OperationSpur gear
76/24 (3.166)
Chain drive
38/13 (2.923)
Constant mesh, 6-speed forward, 1-speed reverse
Left foot operation MODEL YFM350R
U5YT61.book Page 3 Wednesday, April 7, 2004 3:59 PM
