Coolant - Yamaha YZF-R25 Owner's Manual

PERIODIC MAINTENANCE AND ADJUSTMENT

Coolant

The coolant level should be checked
before each ride. In addition, the
coolant must be changed at the
intervals specified in the periodic
maintenance and lubrication chart.
To check the coolant level
1. Place the vehicle on a level surface
and hold it in an upright position.
TIP
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.
Make sure that the vehicle is
positioned straight
7
checking the coolant level. A slight
tilt to the side can result in a false
reading.
Check the coolant level in the
2.
coolant reservoir.
TIP
The coolant should be between the
minimum and maximum level marks.
1. Maximum level mark
2. Minimum level mark
3. Coolant reservoir
If the coolant is at or below the
3.
minimum level mark, remove the
left side cowling and coolant
up when
reservoir cover to access the
coolant reservoir.
1. Left side cowling
2. Bolt
1
2
3
2
1
2
2
7-13
1
1. Bolt
2. Coolant reservoir cover
4. Remove the coolant reservoir cap,
add coolant to the maximum level
mark, and then install the reservoir
cap. WARNING! Remove only the
coolant reservoir cap. Never
attempt to remove the radiator
cap when the engine is hot.
NOTICE: If coolant
available, use distilled water or
soft tap water instead. Do not
use hard water or salt water
since it is harmful to the engine.
If water has been used instead of
coolant, replace it with coolant
as soon as possible, otherwise
the cooling system will not be
protected against frost and
2
is not