Yamaha WR450F
Maintenance specs for 1 variant of the Yamaha WR450F — from 2003 to 2026.
2003–2026 Yamaha WR450F
449cc Liquid-Cooled DOHC 4-Stroke Single · Chain
54 hp / 35 lb-ft
Transmission
Type5-Speed (shared with engine oil)
FluidShared with engine oil
Fuel
Tank2 gal
TypePremium 91
Tires
Front80/100-21
Rear120/90-18
Pressure (front)14 PSI
Pressure (rear)14 PSI
Service Intervals
Oil change1,800 mi
Coolant flush6,000 mi
Brake fluid6,000 mi
Spark plugs3,000 mi
Timingchain (no scheduled replacement)
Air filter600 mi