Yamaha YZ250F(V) Owner's Service Manual page 292

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CARBURETOR
15. Install:
• Jet needle 1
• Collar 2
• Spring 3
• Needle holder 4
• Throttle valve plate 5
To throttle valve 6.
16. Install:
• Throttle valve assembly 1
• Screw (throttle shaft) 2
NOTE:
Install the valve lever rollers 3 into the slits a
of the throttle valve.
17. Install:
• O-ring 1
• Valve lever housing cover 2
• Bolt (valve lever housing cover) 3
18. Install:
• Carburetor breather hose 1
NOTE:
Install the carburetor breather hoses to the
carburetor so that the hoses do not bend near
where they are installed.
ENG