Honda RS150R 2016 Owner's Manual page 66

Coolant Changing Coolant
u
Remove the clip.
1.
Release the tabs and remove the reserve
2.
tank maintenance lid.
Remove the reserve tank cap and add
3.
fluid while monitoring the coolant level.
Do not overfill above the upper level
u
mark.
Make sure no foreign objects enter the
u
reserve tank opening.
Securely reinstall the reserve tank cap.
4.
Install the reserve tank maintenance lid.
5.
Tabs
Clip
62
P. 51
2
Reserve
tank cap
Maintenance lid
WARNING
3
Removing the radiator cap while the
engine is hot can cause the coolant to
spray out, potentially scalding you.
Always let the engine and radiator cool
down before removing the radiator cap.
Changing Coolant
Have your dealer change the coolant unless
you have the proper tools and are
mechanically qualified.