Yamaha WR450F(Y) 2009, Owner'S Service Manual

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3-3
MAINTENANCE INTERVALS FOR COMPETITION USE
• The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
• Hydraulic brake service
• After disassembling the brake master cylinders and calipers, always change the fluid. Regularly check the brake fluid
levels and fill the reservoirs as required.
• Every two years replace the internal components of the brake master cylinders and calipers, and change the brake fluid.
• Replace the brake hoses every four years and if cracked or damaged.
MAINTENANCE INTERVALS FOR COMPETITION USE
The following schedule is intended as a general guide to maintenance and lubrication. Bear in mind that such factors as
weather, terrain, geographical location, and individual usage will alter the required maintenance and lubrication intervals. If
you are a doubt as to what intervals to follow in maintaining and lubricating your machine, consult your Yamaha dealer.
15 Sidestand pivot
Check operation.
√ √ √
Apply lithium-soap-based grease (all-purpose
grease) lightly.
16 * Front fork
Check operation and for oil leakage.
√ √
Replace if necessary.
17 * Shock absorber assembly
Check operation and for oil leakage.
√ √
Replace if necessary.
18 * Rear suspension link pivots Apply molybdenum disulfide grease lightly.
√ √
19 * Control cables
Apply Yamaha chain and cable lube or engine
oil 10W-30 thoroughly.
√ √ √
20 * Throttle grip housing and cable
Check operation and free play.
√ √ √
Adjust the throttle cable free play if necessary.
Lubricate the throttle grip housing and cable.
21 * Chassis fasteners
Check all chassis fitting and fasteners.
√ √ √
Correct if necessary.
22 Battery Check terminal for looseness and corrosion.
√ √
No. ITEM CHECKS AND MAINTENANCE JOBS
INITIAL
ODOMETER
READINGS
600 mi
(1,000
km) or 1
month
1,800 mi
(3,000
km) or 3
months
3,000 mi
(5,000
km) or 6
months
Item
After
break-
in
Every
race
Every
third
(or 500
km)
Every
fifth (or
1,000
km)
As re-
quired
Remarks
ENGINE OIL
Replace
● ●
VALVES
Check the valve clearances
● ●
The engine must be cold.
Inspect
●
Check the valve seats and valve
stems for wear.
Replace
●
VALVE SPRINGS
Inspect
●
Check the free length and the tilt.
Replace
●
VALVE LIFTERS
Inspect
●
Check for scratches and wear.