Yamaha YZF-R125
Coolant capacity & service interval
Yamaha YZF-R125 coolant capacity ranges from 0,15 liters to 1 liter. Service intervals include checks every 10000 km or 12 months and changes every 36 months. The data covers 2 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| YZF-R125 (2019- ) |
|
| YZF-R125 (2008-2018) |
|
Additional Notes
- The Yamaha YZF-R125 produced from 2008-2018 carries a radiator capacity of 1 liter, which represents the total volume the cooling circuit holds when fully drained and refilled during a service procedure.
- A separate reservoir capacity of 0.25 liter is specified for the 2008-2018 configuration, meaning the overflow or expansion tank holds a quarter of the volume contained in the radiator itself.
- The 2008-2018 specification includes a coolant level check interval of every 10,000 km or 12 months under normal use conditions, in addition to the fluid change interval.
- A coolant change interval of 36 months applies to the 2008-2018 model under normal use, meaning the fluid is replaced on a time-based schedule regardless of distance covered.
- From 2019 onward, the radiator capacity drops to 0.49 liter, which is less than half the 1 liter figure specified for the 2008-2018 generation, reflecting a significant reduction in cooling system volume between the two configurations.
- The reservoir capacity for the 2019 onward specification is 0.15 liter, compared to 0.25 liter in the earlier generation, maintaining a proportionally smaller overflow volume relative to the reduced radiator capacity.
- The 36-month coolant change interval under normal use conditions carries over unchanged from the 2008-2018 specification into the 2019 onward configuration.