Yamaha BW's 100 / 125

Automatic transmission fluid capacity & service interval

Yamaha BW's 100 / 125 requires automatic transmission fluid with a capacity of 0,13 liter. Service intervals include changes at 1000 km and 3000 km. The data covers 2 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
BW's 125, YW125B (2010- )
  • Use: Normal
  • Capacity 0,13 liter
  • Change 3000 km
BW's 125, YW125B (2010- )
  • Use: Initial service
  • Capacity 0,13 liter
  • Change 1000 km

Additional Notes

  • The Yamaha BW's 125 (YW125B) automatic transmission holds 0.13 liter of fluid, a notably small volume consistent with the compact CVT-style gearboxes found in scooters of this displacement class.
  • Under normal use conditions, the automatic transmission fluid change interval is set at 3000 km, reflecting a relatively short service cycle typical of small-displacement automatic scooter drivetrains.
  • An initial service interval of 1000 km is specified for the YW125B automatic transmission, meaning the first fluid change occurs well before the standard 3000 km normal-use interval takes effect.
  • The fluid capacity remains identical at 0.13 liter across both the initial service and normal use conditions, indicating the fill volume does not differ between a break-in drain and a routine service drain.

Other Systems