Periodic checks and adjustments
Cleaning the air filter element
In this manual: Periodic checks and adjustments
~1min read
NOTE:
There is a check hose "1" at the bottom of the air filter case. If dust and/or water collects in this hose, clean the air filter element and air filter case.

1. Remove:
- Rider seat Refer to "GENERAL CHASSIS" on page 4-1.
2. Remove:
- Fuel tank Refer to "FUEL TANK" on page 7-1.
3. Remove:
- Air filter case cover "1"
- Air filter element

4. Clean:
- Air filter element "1" Apply compressed air to the outer surface of the air filter element.

5. Check:
- Air filter element Damage
Replace.
6. Install:
- Air filter element
- Air filter case cover (along with the gaskets)
Never operate the engine without the air filter element installed. Unfiltered air will cause rapid wear of engine parts and may damage the engine. Operating the engine without the air filter element will also affect throttle body tuning, leading to poor engine performance and possible overheating.
NOTE:
Make sure the air filter element is properly installed in the air filter case.
7. Install:
- Fuel tank Refer to "FUEL TANK" on page 7-1.
- Rider seat Refer to "GENERAL CHASSIS" on page 4-1.
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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