Periodic checks and adjustments
Checking the coolant level
In this manual: Periodic checks and adjustments
~1min read
1. Stand the vehicle on a level surface.
NOTE:
- Place the vehicle on a suitable stand.
- Make sure the vehicle is upright.
2. Check:
Coolant level The coolant level should be between the maximum level mark "a" and minimum level mark "b".
Below the minimum level mark → Add the recommended coolant to the proper level.
NOTE:
To access the coolant reservoir cap "1", remove the right side cover. Refer to "GENERAL CHASSIS" on page 4-1.

CAUTION:
- Adding water instead of coolant lowers the antifreeze content of the coolant. If water is used instead of coolant, check and, if necessary, correct the antifreeze concentration of the coolant.
- Use only distilled water. However, if distilled water is not available, soft water may be used.
3. Start the engine, warm it up for several minutes, and then turn it off.
4. Check:
- Coolant level
NOTE:
Before checking the coolant level, wait a few minutes until it settles.
Test yourself
A quick Yamaha YZF-R125 quiz: every answer comes with an explanation and a link to the manual page.
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