Suzuki VZR1800 2007 Service Manual page 90

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.
"
Identify the position of each removed part.
• Install the special tool between the valve spring and cylinder
head.
% 09919-28610: Sleeve protector.
"
To prevent damage of the tappet sliding surface with
the valve lifter attachment, use a 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
ENGINE 3-33