Yamaha YXZ 1000R SS 2020 Owner's Manual page 199

Engine overheating
Wait for the engine to cool before removing the radiator cap. WARNING! If the engine is not
cool when removing the radiator cap, hot fluid and steam could blow out under pressure
and burn you.
[EWB03460]
maining pressure to escape.
Wait until the Check the coolant level in the
engine has cooled. coolant reservoir and/or radiator.
TIP
 Tap water can be used in an emergency. Change to the recommended coolant as soon as
possible.
 The engine will tend to overheat if the radiator is caked with mud, or if air was not properly bled
from the cooling system.
Place a thick rag over the cap and remove the cap slowly to allow any re-
Level is low, check the
cooling system for leakage.
Level is OK.
Leakage.
No
leakage.
Restart the engine. If the engine overheats again, ask a
Yamaha dealer to inspect and/or repair the cooling system.
9-72
Ask a Yamaha dealer to inspect
and repair the cooling system.
Add coolant. (See TIP.)
9