Honda 85RB EXPERT 2006, Owner'S Manual

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Servicing Your Honda
49
Reed Valve Inspection
1. Check the reed valves (1) for damage or
fatigue and replace them if necessary.
2. Replace the reed valves with new ones if the
seats are cracked or damaged.
(1) reed valve
Reed Valve Disassembly/Assembly
1. Remove the reed valve mounting screws (1),
stopper (2) and reed valve (3).
2. Align the cut-outs (4) between the reed valves
and stoppers, then install them onto the body
(5).
3. Apply a locking agent to the reed valve
mounting screw threads.
(1) read value mounting screws (3) reed valve
(2) stopper (4) cut-out
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 (3) and body (5) is less than the 0.008
in (0.2 mm).
(3) reed valve (5) body
Piston Installation
1. Clean the piston ring groove.
2. Lubricate the piston ring and piston ring
groove with clean 2-stroke oil.
3. Install the piston rings on the piston with the
marks facing up.
Locate the piston ring end gaps on the pins in
the ring grooves.
4. Lubricate the small end bearing and piston pin
(1) with clean 2-stroke oil.
5. Install the connecting rod small end bearing,
piston and piston pin.
Install the piston with the “IN” mark (2)
facing the intake side.
If the “IN” mark is not found on the piston,
install the piston with the hole facing the
intake side.
6. Install new piston pin clips (3) (Never reuse
old clips.)
Take care so that the clips do not fall into the
crankcase.
Do not align the piston pin clip end gap with
the piston cut-out.
(1) piston pin (3) piston pin clip
(2) “IN” mark
Reed Valve Installation
1. Replace the insulator o-ring (1) and reed valve
gasket (2) with new ones.
(1) insulator o-ring (2) reed valve gasket
Cylinder System
(3)
(2)
(1)
(3)
(5)
(2)
(1)
(3)
(1)
(2)
(1)
(4)
(cont’d)
CR85R/047-053 05.6.8 2:21 PM ページ 49