Cooling system
Installing the water pump
In this manual: Cooling system
~1min read
1. Install:
- Water pump assembly "1"
- O-rings "2"

NOTE:
- Align the projection "a" on the impeller shaft with the slit "b" on the camshaft sprocket bolt.
- Lubricate the O-rings with a thin coat of lithiumsoap- based grease.

2. Fill:
- Cooling system (with the specified amount of the recommended coolant)
Refer to "CHANGING THE COOLANT" on page 3-15.
3. Check:
Cooling system Leaks
Repair or replace the faulty
part.
4. Measure:
Radiator cap opening pressure Below the specified pressure
Replace the radiator cap.
Refer to "CHECKING THE RADIATOR" on page 6-3.
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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