Expansion Chamber - Honda CR85 2006 Owner's Manual

Refer to Safety Precautions on page 19.
Expansion Chamber Inspection
1. Check the expansion chamber spring, and
replace it if it is damaged or stretched.
2. Check the flange bolts for tightness.
3. Check the expansion chamber for cracks or
deformation.
A damaged chamber may decrease engine
performance.
Expansion Chamber Removal
1. Remove the expansion chamber by removing
the expansion chamber spring (1) and
mounting bolts (2).
2. Remove carbon deposits from the head pipe
of the expansion chamber.
(2)
(1) spring (2) mounting bolts
Expansion Chamber/Installation
1. Inspect the O-rings (1). Replace the O-rings
if they are damaged or otherwise appear
unserviceable.
2. Install the O-rings and washer (2) as shown.
If necessary apply grease to the washer.
3. Install the expansion chamber (3), expansion
(2)
chamber spring (4) and mounting bolts (5).
Tighten the front and rear mounting bolts to
the specified torque:
6.5 lbf·ft (8.8 N·m, 0.9 kgf·m)
(1)
(2)
(1)
(1) O-rings
(2) washer

(3) expansion chamber

Expansion Chamber

(3)
(5)
(4) expansion chamber
spring
(5) mounting bolts
Servicing Your Honda
(4)
67