Yamaha WR450FB 2012 Owner's Service Manual page 105

6
4. If the oil filter element is also to be replaced,
perform the following procedure.
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a. Remove the oil filter element cover "1" and
oil filter element "2".
b. Replace the O-rings "3".
c. Install the new oil filter element and the oil fil-
ter element cover.
Oil filter element cover bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
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5. Install:
• Gaskets
New
• Oil filter drain bolt
Oil filter drain bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
• Right crankcase drain bolt
Right crankcase drain bolt
20 Nm (2.0 m·kgf, 14 ft·lbf)
• Left crankcase drain bolt
Left crankcase drain bolt
20 Nm (2.0 m·kgf, 14 ft·lbf)
PERIODIC MAINTENANCE
6. Fill:
• Engine oil
Engine oil quantity
Without oil filter element replace-
ment
0.95 L (1.00 US qt, 0.84 Imp qt)
With oil filter element replace-
ment
1.00 L (1.06 US qt, 0.88 Imp qt)
Quantity (disassembled)
1.20 L (1.27 US qt, 1.06 Imp qt)
7. Install:
• Oil filler cap
• Oil tank cap
8. Check:
• Engine (for oil leaks)
• Oil level
Refer to "CHECKING THE ENGINE OIL
LEVEL" on page 3-12.
9. Check:
• Engine oil pressure
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a. Slightly loosen the oil pressure check bolt
"1".
b. Start the engine and keep it idling until oil
starts to seep from the oil pressure check
bolt. If no oil comes out after one minute,
turn the engine off so it will not seize.
c. Check oil passages and oil pump for dam-
age or leakage.
d. Start the engine after solving the problem(s)
and recheck the oil pressure.
e. Tighten the oil pressure check bolt.
Oil pressure check bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
1
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10.Install:
• Engine guard
3-14