Checking The Radiator; Installing The Radiator - Yamaha YZ125 2009 Owner's Service Manual

HANDLING NOTE
Do not remove the radiator cap when the en-
gine and radiator are hot. Scalding hot fluid
and steam may be blown out under pres-
sure, which could cause serious injury.
When the engine has cooled, open the radi-
ator cap by the following procedure:
Place a thick rag, like a towel, over the radi-
ator cap, slowly rotate the cap counter-
clockwise to the detent. This procedure
allows any residual pressure to escape.
When the hissing sound has stopped, press
down on the cap while turning counter-
clockwise and remove it.

CHECKING THE RADIATOR

1. Inspect:
• Radiator core "1"
Obstruction → Blow out with compressed air
through rear of the radiator.
Bent fin → Repair/replace.

INSTALLING THE RADIATOR

1. Install:
• Radiator breather hose "1"
• Radiator hose 3 "2"
Radiator hose 3:
2 Nm (0.2 m•kg, 1.4 ft•lb)
• Radiator hose 1 "3"
Radiator hose 1:
2 Nm (0.2 m•kg, 1.4 ft•lb)
To right radiator "4".
Clamp the radiator hose in the direction as
shown.
2. Install:
• Right radiator "1"
• Washer "2"
• Bolt (right radiator) "3"
Bolt (right radiator):
10 Nm (1.0 m•kg, 7.2 ft•lb)
• Radiator hose 4 "4"
Radiator hose 4:
2 Nm (0.2 m•kg, 1.4 ft•lb)
Refer to "CABLE ROUTING DIAGRAM"
section in the CHAPTER 2.
3. Install:
• Left radiator "1"
• Washer "2"
• Bolt (left radiator) "3"
Bolt (left radiator):
10 Nm (1.0 m•kg, 7.2 ft•lb)
• Radiator hose 2 "4"
Radiator hose 2:
2 Nm (0.2 m•kg, 1.4 ft•lb)
Refer to "CABLE ROUTING DIAGRAM"
section in the CHAPTER 2.
4-7
RADIATOR