Yamaha 2004 WR250FS Owner's Service Manual page 139

CARBURETOR
10. Install:
• Starter jet 1
• Pilot jet 2
• Spacer 3
• Needle jet 4
• Main jet 5
11. Install:
• Needle valve 1
• Float 2
• Float pin 3
NOTE:
• After installing the needle valve to the float,
install them to the carburetor.
• Check the float for smooth movement.
12. Install:
• Pilot screw 1
• Spring 2
• Washer 3
• O-ring 4
Note the following installation points:
• Turn in the pilot screw until it is lightly
seated.
• Turn out the pilot screw by the number of
turns recorded before removing.
Pilot screw:
2 turns out (example)
* 1-1/2 turns out
* Except for USA
13. Install:
• O-ring
• Leak jet 1
• Float chamber 2
• Screw (float chamber) 3
• Cable holder
(throttle stop screw cable) 4
• Hose holder
(carburetor breather hose) 5
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