Honda XR100R User Manual

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CYLINDER HEAD/VALVES
VALVE
SEAT INSPECTION/REFACING HAND·LAPPI NGTO OL ~
Clean the inta ~e and eXhaust valves thorogh ly to
remove carbon deposits.
Apply a ligh t coating of Prussian Blue to the valve
seats. L ap the valves and seats using a rubber hose
or other hand·lapping tool.
Remove and inspect the valves.
CAU TI ON:
T/le
va lves cannot be ground. If a valve face is
burned Or badly worn or if it contac ts I he seal
unevenly, rep/lice t/l e valve.
Inspoct the width of each valve seat.
STANDARD: 1.1 mm (0.06 in)
SERVICE UMIT:
2.1 mm 10.08 I 'l l
If the seat is 100 wide, too narro w or has low sp ot s,
the seat mus t be ground .
VALVE SEAT REFACING
Valve seat cutt erS/grinders or equivalent valve seal
refacing equip m en t are recommended to co rrect
worn valve seals.
L
~.
•
,
/
SEAT WIDTH
VALVE SEAT CUTTERS (EOUIVALENT
CO MM ERCIALLY AVA ILABLE IN U.S.A.)
I
"'"
Z
1~J2 '
IN: 07780 _ 0012000 (25 mmj32')
EK 07780 - 0012601 (2 2 mmI3 1')
I
""
n°s ·
IN: 07780 - 0010200 127.5 mm)
EX: 07780 - 0010100 124.5 mm)
IN, EX:
07780 - 0014000 (12 mm)
7~11

Honda XR100R Specifications

General

Brand	Honda
Model	XR100R
Category	Motorcycle
Language	English