Suzuki VZR1800 2007, Service Manual

Page: 90 / 609

ENGINE 3-33
CYLINDER HEAD DISTORTION
• Decarbonize the combustion chambers.
• Check the gasketed surface of the cylinder head for distortion
with a straightedge and thickness gauge, taking a clearance
reading at several places indicated.
• If the largest reading at any position of the straightedge
exceeds the limit, replace the cylinder head.
$
Cylinder head distortion:
Service Limit: 0.05 mm (0.002 in)
%
09900-20803: Thickness gauge
VALVE AND VALVE SPRING DISASSEMBLY
• Remove the tappet
1
and shim
2
by fingers or magnetic
hand.
"
• Install the special tool between the valve spring and cylinder
head.
%
09919-28610: Sleeve protector.
"
• Using the special tools, compress the valve spring and
remove the two cotter halves
3
from the valve stem.
%
09916-14510: Valve lifter
09916-14910: Valve lifter attachment
09916-84511: Tweezers
Identify the position of each removed part.
To prevent damage of the tappet sliding surface with
the valve lifter attachment, use a protector.