Suzuki GSX-R1000 2007 Service Manual page 84

3-34 ENGINE
• Remove the oil seal  and spring seat .
Do not reuse the removed oil seal.
• Remove the other valves in the same manner as described
previously.
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: 0.20 mm
09900-20803: Thickness gauge
VALVE STEM RUNOUT
• Support the valve using V-blocks and check its runout using
the dial gauge as shown.
• If the runout exceeds the service limit, replace the valve.
Valve stem runout:
Service Limit: 0.05 mm
09900-20607: Dial gauge (1/100 mm)
09900-20701: Magnetic stand
09900-21304: V-block set (100 mm)
Be careful not to damage the valve and valve stem
when handling it.