Yamaha YZ250
Maintenance specs for 1 variant of the Yamaha YZ250 — from 1985 to 2026.
1985–2026 Yamaha YZ250
249cc Liquid-Cooled 2-Stroke Single (YPVS) · Chain
49 hp / lb-ft
Engine Oil
WeightYamalube 2-R or Yamalube 2-S 2-stroke oil (premix 32:1)
Transmission
Type5-Speed
FluidSAE 10W-40 JASO MA
Drain & fill0.79 qt
Fuel
Tank2.1 gal
TypePremium 91 (premixed with 2-stroke oil at 32:1)
Tires
Front80/100-21
Rear110/90-19
Pressure (front)14 PSI
Pressure (rear)14 PSI
Service Intervals
Oil change225 mi
Trans service450 mi
Coolant flush1,500 mi
Brake fluid1,500 mi
Spark plugs450 mi
Air filter150 mi