Yamaha WR125R 2009, Service Manual

Page: 95 / 372

ENGINE
3-14
EAS21080
CHECKING THE EXHAUST SYSTEM
1. Check:
• Exhaust pipe “1”
• Muffler “2”
Cracks/damage
→
Replace.
• Gaskets “3”
Exhaust gas leaks
→
Replace.
2. Check:
Tightening torques
• Exhaust pipe nuts “4”
• Muffler bolts “5”
• Muffler clamp bolt “6”
EAS21110
CHECKING THE COOLANT LEVEL
1. Stand the vehicle on a level surface.
TIP
• 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.
NOTICE
ECA22B1004
• 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
TIP
Before checking the coolant level, wait a few
minutes until it settles.
EAS21120
CHECKING THE COOLING SYSTEM
1. Remove:
• Fuel tank cover assembly
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.
T
R
.
.
Exhaust pipe nut
20 Nm (2.0 m·kgf, 14 ft·lbf)
Muffler bolt
27 Nm (2.7 m·kgf, 19 ft·lbf)
Muffler clamp bolt
18 Nm (1.8 m·kgf, 13 ft·lbf)
1
3
4
6
1
3
2
5
5
a
b
5
4
3
1
2