Honda CRF250R 2005, Owner'S Manual

Page: 123 / 164

Carburetor Adjustments & Tuning Tips
Adjustments for Competition
119
Carburetor Disassembly
1. Pull up the cable clamp (1) and remove the
carburetor top bolts (2).
Then remove the carburetor top (3).
(1) cable clamp
(2) carburetor top bolts
(3) carburetor top
2. Remove the jet needle holder (4) and jet
needle (5) from the throttle valve (6).
(4) jet needle holder
(5) jet needle
(6) throttle valve
3. Remove the link arm set screw (7).
When installing the link arm set screw, apply
a locking agent to the link arm set screw
threads.
4. Remove the throttle valve (8), throttle valve
roller (9) and floating valve (10).
(7) link arm set screw (9) throttle valve roller
(8) throttle valve (10) floating valve
When installing the floating valve (10) onto
the throttle valve (8) make sure the floating
valve’s flat side faces out and the hole (11)
faces down.
(8) throttle valve
(10) floating valve
(11) hole
(3)
(1)
(2)
(5)
(4)
(6)
(7) (8)
(9)
(10)
(8)
(11)
(8)
(10)
(cont’d)