Valve Stem Deflection - Suzuki DR650SE Shop Manual

VALVE FACE WEAR
Measure the thickness
CD
and, if the thickness is found to
have been reduced to the limit, replace the valve.
NOTE:
Visually inspect each valve for wear of its seating face.
Replace any valve with an abnormally worn face.
Service Limit: 0.5 mm (0.02 in)
VALVE STEM RUNOUT
Support the valve with "V" blocks, as shown, and check
its runout with a dial gauge. The valve must be replaced if
the runout exceeds the limit.
Service Limit: 0.05 mm (0.002 in)
_ 09900-20701: Megnetic stand
09900-20606: Dial gauge (1/100 mm)
09900-21304: V-block (100 mm)
VALVE HEAD RADIAL RUNOUT
Place the dial gauge at right angles to the valve head, and
measure the valve head radial runout.
If it measures more than limit, replace the valve.
Service Limit: 0.03 mm (0.001 in)
VALVE STEM DEFLECTION
Lift the valve about 10 mm (0.39 in) from the valve seat.
Measure the deflection in two directions, "X" and "Y" per-
pendicular to each other, by positioning the dial gauge as
shown. If the deflection measured exceeds the limit speci-
fied below, then determine whether the valve or the guide
should be replaced with a new one.
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09900-20606: Dial gauge (1/100 mm)
09900-20701: Magnetic stand
Service Limit
Intake and exhaust valves: 0.35 mm (0.014 in)
ENGINE 3-20