Honda CRF450R 2009 Service Manual page 250

CYLINDER HEADNALVES
9-8
Remove the plug hole seal ring and packing .
DISASSEMBL Y/ASSEMBL Y
Remove the bolts and breather plate .
Clean the cylinder head cover and breather plale.
Apply
liquid
sealant (TB12078 or equivalent) to the
cylinder head cover as shown.
Install the breather plale to the cylinder head cover.
Install and tighten new breather plate bolls to the
specified torque.
TORQUE: 12 N-m (1.2 kgf-m, 9 lbHt)
INSTALLATION
Check the
plug
hole seal ring and packing for damage
or deterioration and replace them
jf
necessary.
Apply engine oil to the plug hole seal ring outer surface,
and install
it.
Install the packing to the cylinder head cover.
Install the cylinder head cover.
TS
CYLINDER COVER
PLATE
o
o