Honda CRF250X Owner's Manual & Competition Handbook page 138

250X_130-139.qxd 08.7.3 10:16 ページ132
Carburetor Adjustment & Tuning Tips
When installing the floating valve (9) onto the
throttle valve (7) make sure the floating valve's
flat side faces out and the hole (10) faces down.
(7)
(10)
(7) throttle valve
(9) floating valve
(10) hole
132 132
Adjustments for Competition Adjustments for Competition
5. Remove the accelerator pump cover screws
(11) and accelerator pump cover (12).
(11)
(9)
(12)
(11) accelerator pump cover screws
(12) accelerator pump cover
6. Remove the U-ring (13), O-ring (14), spring
(15) and diaphragm (16).
Clean the diaphragm.
When installing the U-ring into the accelerator
pump cover (12) make sure the U-ring's
flatside faces down, away from the float bowl
(17).
(13)
(15)
(16) (14)
(12) accelerator pump cover
(13) U-ring
(14) O-ring
7. Remove the holder screw (18), throttle stop
screw holder (19), float bowl screws (20),
tube guides (21) and float bowl (17).
(20)
(17) float bowl
(18) holder screw
(19) throttle stop screw holder
(20) float bowl screws
(21) tube guides
8. Remove the pump rod (22).
Clean the pump rod and rod passage (23).
Install the pump rod into the link lever (24).
Push the rod forcibly into the link lever until
it snaps into place.
(17)
(13)
(12)
(23)
(15) spring
(16) diaphragm
(17) float bowl
(22) pump rod
(23) rod passage
(18)
(19)
(17)
(21)
(24)
(22)
(22)
(24)
(24) link lever