Honda CRF450R Owner's Manual page 126

Carburetor Adjustments & Tuning Tips
4. Disconnect the fuel line (2) from the fuel
valve (3).
5. Remove the fuel tank (page 30).
6. Remove the subframe (page 32).
7. Loosen the intake band screw (4).
(3)
(2) fuel line
(3) fuel valve
(4) intake band screw
8. Disconnect the throttle sensor connector (5).
9. Remove the carburetor.
(5)
(5) throttle sensor connector
122
Adjustments for Competition
10. Remove the hot start cable holder (6).
(6)
(2)
(4)
(6) hot start cable holder
11. Remove the throttle drum cover bolt (7) and
throttle drum cover (8).
(7)
(7) throttle drum cover bolt
(8) throttle drum cover
12. Remove the throttle cables (9) by loosening
(10) throttle cable lock nut
(8)
the throttle cable lock nut (10).
(9)
(10)
(9) throttle cables