Yamaha 2004 YXR660 Service Manual page 242

Order Job/Part
Disassembling the carburetor
1
Throttle stop screw
2
Vacuum chamber cover
3
Spring
4
Jet needle holder
5
Spring
6
Jet needle set
7
Piston valve
8
Coasting enricher diaphragm
CARBURETOR
Q'ty
Remove the parts in the order listed.
NOTE:
Before disassembling the carburetor,
make sure to note the number of times
the pilot screw is turned out from the
seated position to its set position.
1
1
1
1
1
1
1
1
6 - 6
FUEL
Remarks