Yamaha YZ125X
Maintenance specs for 1 variant of the Yamaha YZ125X — from 2020 to 2026.
2020–2026 Yamaha YZ125X
125cc Liquid-Cooled 2-Stroke Single (YPVS) · Chain
35 hp / lb-ft
Engine Oil
WeightYamalube 2-R or Yamalube 2-S 2-stroke oil (premix 32:1)
Transmission
Type6-Speed
FluidSAE 10W-40 JASO MA
Drain & fill0.7 qt
Fuel
Tank1.85 gal
TypePremium 91 (premixed with 2-stroke oil at 32:1)
Tires
Front90/90-21
Rear110/90-18
Pressure (front)14 PSI
Pressure (rear)14 PSI
Service Intervals
Oil change300 mi
Trans service600 mi
Coolant flush3,000 mi
Brake fluid3,000 mi
Spark plugs600 mi
Air filter300 mi