Yamaha WR450F 2021, Owner'S Service Manual

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PERIODIC MAINTENANCE
3-2
TIP
•
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
4 * Front brake
• Check operation, fluid level, and for fluid leakage.
• Replace brake pads if necessary.
  
• Replace brake fluid every 1 year. Every 1 year
5 * Rear brake
• Check operation, fluid level, and for fluid leakage.
• Replace brake pads if necessary.
  
• Replace brake fluid every 1 year. Every 1 year
6 * Brake hoses
• Check for cracks or damage.
 
• Replace. Every 4 years
7 * Wheels
• Check runout, spoke tightness and for damage.
• Tighten spokes if necessary.
  
8 * Tires
• Check tread depth and for damage.
• Replace if necessary.
• Check air pressure.
• Correct if necessary.
  
9 * Wheel bearings
• Check bearings for smooth operation.
• Replace if necessary.
  
10 *
Swingarm pivot
bearings
• Check bearing assemblies for looseness.
• Moderately repack with lithium-soap-based grease.
  
11 Drive chain
• Check chain slack/alignment and condition.
• Adjust and lubricate chain with a special O-ring
chain lubricant thoroughly.
Every ride
12 * Steering bearings
• Check bearing assemblies for looseness.
• Moderately repack with lithium-soap-based grease
every 1200 mi (2000 km) or 12 months (whichever
comes first).
  
13
Brake and clutch
lever pivot shafts
• Apply lithium-soap-based grease (all-purpose
grease) or silicone grease lightly.
  
14
Brake pedal pivot
shafts
• Apply lithium-soap-based grease (all-purpose
grease) lightly.
  
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 hous-
ing 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
(1000 km) or
1 month
1800 mi
(3000 km) or
3 months
3000 mi
(5000 km) or
6 months