Honda CBR125R, Owner'S Manual

Page: 203 / 430

CYLINDER HEAD/VALVES
8-15
CYLINDER HEAD
If the O
2
sensor cap is disconnected, replace the O
2
sensor cord with a new one.
REMOVAL
Remove the following:
– Engine (page 7-4)
– Camshaft holder (page 8-12)
Remove the cylinder head bolts and cylinder head.
• Attach a piece of wire to the cam chain to pre-
vent it from falling into the crankcase.
• Do not strike the cylinder too hard and do not
damage the mating surface with a screwdriver.
Remove the dowel pins and gasket.
DISASSEMBLY
Remove the following:
– Spark plug (page 3-9)
– O
2
sensor (page 5-67)
If the O
2
sensor cap is disconnected, replace the O
2
sensor cord with a new one.
Loosen the insulator band screw and remove the
throttle body insulator.
Be careful not to let
the cylinder head
bolts fall into the
crankcase.
BOLTS
CYLINDER HEAD
CAM CHAIN
DOWEL PINS
GASKET
INSULATOR
BAND SCREW