Yamaha YZ450F (2024)
Fluid capacities, consumables, drivetrain, tire pressure & wear limits
The Yamaha YZ450F (2024) takes 0.96 L of oil with a filter change (0.94 L without).
Fluid Capacities
Oil capacity (with filter)0.96 LWith oil filter removal
Oil capacity (without filter)0.94 LRoutine oil change
Oil capacity (dry fill)1.2 LFull disassembly refill
Coolant (radiator)1.03 LRadiator including all routes — no separate reserve tank on this bike
Consumables
Engine oil gradeYAMALUBE 10W-40, 10W-50, 15W-40, 20W-40 or 20W-50, API SG or higher, JASO MA
Coolant typeHigh-quality ethylene glycol antifreeze containing anti-corrosion additives for aluminum engines, mixed 50/50 with soft waterWeb-confirmed against the YZ450F owner's service manual's own coolant wording.
Oil filter (OEM)5D3-13440-09Web-confirmed, covers YZ250F/450F/450FX 2003-2024.
Air filter (OEM)BHR-14451-00Web-confirmed for YZ450F 2023-2026.
Spark plug (OEM)NGK LMAR8G
Drive chain520 non-sealed type, 114 links
Front brake pads (OEM)1.0 mm lining thickness limit
Rear brake pads (OEM)1.0 mm lining thickness limit
Clutch free play7–12 mmAt clutch lever end, cable-actuated
Drivetrain
Chain size520
Chain links114
Chain slack50–60 mmMeasured on maintenance stand
Chain 15-link limit242.9 mm
Front sprocket (OEM)13TDerived from secondary reduction ratio 3.769 (49/13)
Rear sprocket (OEM)49TDerived from secondary reduction ratio 3.769 (49/13)
Brakes & Tires
Front tire size80/100-21 51M, with tube
Rear tire size120/80-19 63M, with tube
Front tire pressure100 kPaMeasured on cold tires
Rear tire pressure100 kPaMeasured on cold tires
Brake fluid typeDOT 4
Wear Limits
Front brake disc (min)2.5 mm
Rear brake disc (min)3.5 mm
Brake pad — front (min)1 mm
Brake pad — rear (min)1 mm
Clutch friction plate (min)2.02 mm
Drive chain slack (limit)60 mmUpper end of the adjustment range — beyond this, adjust or replace