Valve Stem Runout; Valve Head Radial Runout; Valve Stem And Valve Face Wear Condition; Valve Stem Deflection - Suzuki GSX-R1000 Service Manual

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Valve Stem Runout

Support the valve using V-blocks, as shown in the figure,
and check its runout using the dial gauge. If the runout
exceeds the service limit, replace the valve.
Special tool
(A): 09900–20607 (Dial gauge)
(B): 09900–20701 (Dial gauge chuck)
(C): 09900–21304 (V blocks)
Valve stem runout (IN. & EX.)
Service limit: 0.05 mm (0.002 in)
(A)
(C)

Valve Head Radial Runout

Place the dial gauge at a right angle to the valve head
face and measure the valve head radial runout. If it
measures more than the service limit, replace the valve.
Special tool
(A): 09900–20607 (Dial gauge)
(B): 09900–20701 (Dial gauge chuck)
(C): 09900–21304 (V blocks)
Valve head radial runout (IN. & EX.)
Service limit: 0.03 mm (0.001 in)
(A)
(C)
email: info@motomatrix.co.uk / www.motomatrix.co.uk

Valve Stem and Valve Face Wear Condition

Visually inspect each valve stem and valve face for wear
and pitting. If it is worn or damaged, replace the valve
with a new one.
(B)

Valve Stem Deflection

Lift the valve about 10 mm (0.39 in) from the valve seat.
Measure the valve stem deflection in two directions, "X"
and "Y", perpendicular to each other. Position the dial
gauge as shown. If the deflection exceeds the service
limit, then determine whether the valve or the guide
should be replaced with a new one.
I649G1140231-03
Special tool
(A): 09900–20607 (Dial gauge)
(B): 09900–20701 (Dial gauge chuck)
Valve stem deflection (IN. & EX.)
Service limit: 0.25 mm (0.010 in)
(B)
I649G1140232-03
Engine Mechanical: 1D-45
I947H1140093-01
(A)
(B)
I837H1140061-03