Honda CRF450R Owner's Manual page 67

18. Remove the accelerator pump cover screws and ac-
celerator pump cover.
(1) ACCELERATOR PUMP COVER SCREWS
(2) ACCELERATOR PUMP COVER
19. Remove the D-ring, O-ring spring and diaphragm.
Clean the diaphragm.
When installing the D-ring into the accelerator pump
cover make sure the D-rings flat-side faces down,
away from the float bowl.
(1) D-RING (2) O-RING
(3) SPRING (4) DIAPHRAGM
(5) ACCELERATOR PUMP COVER
(6) FLOAT BOWL
20. Remove the holder screw, throttle stop screw holder,
float bowl screws, tube guides and float bowl.
(1) HOLDER SCREW
(2) THROTTLE STOP SCREW HOLDER
(3) FLOAT BOWL SCREWS
(4) TUBE GUIDES
(5) FLOAT BOWL
21. Remove the pump rod.
Clean the pump rod and rod passage.
Install the pump rod into the link lever.
Push the rod forcibly into the link lever until it snaps
into place.
(1) PUMP ROD (2) ROD PASSAGE
(3) LINK LEVER
22. Measure the float level with the float tab just con-
tacting the float valve and the carburetor intake fac-
ing up. The float level should be 0.31 in (8.0 mm).
Adjust the float level by bending the float tab care-
fully.
(1) FLOAT LEVEL GAUGE
(3) CARBURETOR INTAKE
23. Remove the leak jet from the float bowl.
Clean the leak jet.
(1) LEAK JET (2) FLOAT BOWL
(2) FLOAT LEVEL
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