Honda CR250R, Owner'S Manual & Competition Handbook

Page: 63 / 149

Reed Valve
Refer to Safety Precautions on page 19.
Reed Valve Removal
1. Remove the carburetor (page 107).
2. Remove the insulator (1) and reed valve (2)
from the cylinder by removing the six
carburetor insulator mounting bolts (3).
3. Remove the gasket.
(1) insulator
(2) reed valve
Reed Valve Inspection
1. Check the reed valves (1) for damage or
fatigue and replace them if necessary.
2. Replace the reed valve with new ones if the
seats are cracked or damaged.
(1) reed valves
Reed Valve Disassembly/Assembly
1. Remove the reed valve mounting screws (1),
stopper (2), sub-reed valve (3), reed valve (4)
and the spacer (5) on one side of the reed
valve.
2. Align the cut-outs (6) between the reed valves
and stoppers, then install them onto the cage.
(1) reed valve mounting screws (4) reed valve
(2) stopper (5) spacer
(3) sub-reed valve (6) cut-out
3. Apply a locking agent to the reed valve
mounting screw threads.
4. Install and tighten the mounting screws to the
specified torque:
0.7 lbf·ft (1 N·m, 0.1 kgf·m)
5. Make sure that the clearance between the reed
valve and cage (7) is less than the 0.008 in
(0.2 mm).
(4) reed valve (7) cage
58
Servicing Your Honda
(2)
(1)
(3)
(1)
(6)
(3)
(7)
(4)
(1)
(2)
(3)
(3) carburetor insulator
mounting bolts
(5)
(4)
(4)
(2)
(1)
(6)
0.008 in
(0.2 mm)
*CR250R/49~59(31KSK630).qxd 6/2/06 9:57 AM Page 58