Honda 2010 CRF250R Service Manual page 204

CYLINDER HEADNALVES
To prevent loss of Install the valve cotters using the special tools as
tension,
do
not
shown.
compress the valve
springs more than
necessary.
• Grease the cotters to ease installation.
TOOLS:
Valve spring compressor
Valve spring compressor
attachment
NOTE:
07757-0010000
070ME·MCW0100 or
070ME·MCWA100
(U.S.A. only)
Do nol confuse the intake and exhaust valve cotters.
The inside radius of intake valve cotler is larger than
that of the exhaust valve cotter.
Suppon/he cylinder
Tap the valve stems with a hammer and shaft as shown
head so the valve
to seal the colters firmly.
heads do not
contact anything
thaI could damage
them.
VALVE SPRING COMPRESSOR
,
, ,
,
ATTACHMENT COTTERS
INTAKE COTTER: EXHAUST COTTER:
Ell Bl
4.915 mm (0.194 in) 4.415 mm (0.174 in)
Install the insulator to the cylinder head by aligning the
~========::"':~'::
...
",,====~
'10 shown:
groove of the insulator with the tab of the cylinder head.
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