Checking The Exhaust System; Checking The Coolant Level; Checking The Cooling System; Changing The Coolant - Yamaha YZF-R125 Service Manual

YamahaR125.COM
EAS21080

CHECKING THE EXHAUST SYSTEM

1. Check:
• Exhaust assembly "1"
Cracks/damage → Replace.
• Exhaust pipe gasket "2"
Exhaust gas leaks → Replace.
2. Check:
• Tightening torques of the exhaust pipe nuts
"3" and exhaust assembly bolts "4"
Exhaust pipe nut
20 Nm (2.0 m·kg, 14 ft·lb)
Exhaust assembly bolt
20 Nm (2.0 m·kg, 14 ft·lb)
4
1
EAS21110

CHECKING THE COOLANT LEVEL

1. Stand the vehicle on a level surface.
NOTE:
• Place the vehicle on a suitable stand.
• Make sure the vehicle is upright.
2. Check:
• Coolant level
The coolant level should be between the
maximum level mark "a" and minimum level
mark "b".
Below the minimum level mark → Add the
recommended coolant to the proper level.
NOTE:
To access the coolant reservoir cap "1", remove
the right side cover. Refer to "GENERAL CHAS-
SIS" on page 4-1.
4
2
3
1
a
b
ECA5D71035
CAUTION:
• Adding water instead of coolant lowers the
antifreeze content of the coolant. If water is
used instead of coolant, check and, if nec-
essary, correct the antifreeze concentra-
tion of the coolant.
• Use only distilled water. However, if dis-
tilled water is not available, soft water may
be used.
3. Start the engine, warm it up for several min-
utes, and then turn it off.
4. Check:
• Coolant level
NOTE:
Before checking the coolant level, wait a few
minutes until it settles.
EAS21120

CHECKING THE COOLING SYSTEM

1. Remove:
3
• Side covers
• Upper side cowlings
Refer to "GENERAL CHASSIS" on page 4-1.
2. Check:
• Radiator "1"
• Radiator inlet hose "2"
• Radiator outlet hose "3"
• Coolant reservoir hose "4"
• Water pump breather hose "5"
Cracks/damage → Replace.
Refer to "RADIATOR" on page 6-1.
4
1
3. Install:
• Upper side cowlings
• Side covers
Refer to "GENERAL CHASSIS" on page 4-1.
EAS21130

CHANGING THE COOLANT

1. Remove:
• Lower side cowlings
Refer to "GENERAL CHASSIS" on page 4-1.
3-15
ENGINE
2
5
3