Honda RUCKUS NPS50 2022 Owner's Manual page 62

Coolant Adding Coolant
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Adding Coolant
If the coolant level is below the LOWER level
mark, add the recommended coolant
( P. 48) until the level reaches the UPPER
2
level mark.
Add fluid only from the reserve tank cap and
do not remove the radiator cap.
Reserve tank
58
Remove the reserve tank cap and add
1.
fluid while monitoring the coolant level.
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Securely reinstall the reserve tank cap.
2.
Reserve
Removing the radiator cap while the
tank cap
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.
Do not overfill above the UPPER level
mark.
Make sure no foreign objects enter the
reserve tank opening.
WARNING
3