Yamaha YZ426F 1999 Manuel D'atelier page 264

CARBURETOR
8. Install:
Jet needle 1
Needle holder 2
Throttle valve plate 3
To throttle valve 4.
9. Install:
Throttle valve assembly 1
Screw (throttle shaft) 2
NOTE:
Install the valve lever rollers 3 into the slits a
of the throttle valve.
10. Install:
Gasket 1
Valve lever housing cover 2
Screw 3
11. Install:
Carburetor breather hose 1
Refer to "CABLE ROUTING DIA-
GRAM" section in the CHAPTER 2.
EC465360
Carburetor installation
1. Install:
Carburetor joint 1
NOTE:
Install the projection 2 on the cylinder
between the carburetor joint slots.
4 - 15
ENG