Yamaha WR450FX, Owner'S Service Manual

Page: 104 / 220

5-10
CARBURETOR
a. Fully turn in the accelerator pump
adjusting screw "3".
b. Check that the link lever "4" has
free play "b" by pushing lightly on
it.
c. Gradually turn out the adjusting
screw while moving the link lever
until it has no more free play.
INSTALLING THE CARBURETOR
1. Install:
• Carburetor joint "1"
•
Bracket (cylinder head breather
pipe) "2"
•
Bolt (carburetor joint) "3"
•
Cylinder head breather pipe "4"
• Cylinder head breather hose 1 "5"
•
Cylinder head breather hose 2 "6"
• Cylinder head breather hose 3 "7"
2. Install:
• Carburetor "1"
Install the projection "a" between the
carburetor joint slots.
3. Install:
• Hot starter plunger "1"
4. Tighten:
•
Bolt (carburetor joint) "1"
•
Bolt (air filter joint) "2"
5. Install:
• Throttle cable (pull) "1"
• Throttle cable (return) "2"
6. Adjust:
•
Throttle grip free play
Refer to "ADJUSTING THE
THROTTLE CABLE FREE PLAY"
section in the CHAPTER 3.
7. Install:
• Throttle cable cover "1"
•
Bolt (throttle cable cover) "2"
8. Install:
•
Throttle position sensor lead cou-
pler "1"
•
Clamp "2"
Refer to "CABLE ROUTING DIA-
GRAM" section in the CHAPTER
2.
9. Install:
• Clamp "1"
Refer to "CABLE ROUTING DIA-
GRAM" section in the CHAPTER
2.
Bolt (carburetor joint):
10 Nm (1.0 m•kg, 7.2
ft•lb)
Hot starter plunger:
2 Nm (0.2 m•kg, 1.4
ft•lb)
Bolt (carburetor joint):
3 Nm (0.3 m•kg, 2.2
ft•lb)
Bolt (air filter joint):
3 Nm (0.3 m•kg, 2.2
ft•lb)
Throttle cable (pull):
4 Nm (0.4 m•kg, 2.9
ft•lb)
Throttle cable (return):
11 Nm (1.1 m•kg, 8.0
ft•lb)
Bolt (throttle cable cov-
er):
4 Nm (0.4 m•kg, 2.9
ft•lb)
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