Suzuki DR 125 Service Manual page 211

SERVICE DATA
VALVE + GUIDE
ITEM
Valve diam.
Valve clearance (when cold)
Valve guide to valve stem
clearance
Valve guide I.D.
Valve stem O.D.
Valve stem deflection
Valve stem runout
Valve head thickness
Valve stem end length
Valve seat width
Valve head radial runout
Valve spring free length
(IN. & EX.)
Valve spring tension
(IN. & EX.)
STANDARD
IN.
EX.
IN.
EX.
IN.
(0.0004 – 0.0015)
EX.
(0.0012 – 0.0022)
IN. & EX.
(0.2165 – 0.2170)
IN.
(0.2156 – 0.2161)
EX.
(0.2148 – 0.2154)
IN. & EX.
IN. & EX.
IN. & EX.
IN. & EX.
IN. & EX.
IN. & EX.
INNER
OUTER
INNER (7.8 – 9.2 kgf, 17.2 – 20.3 lbs)
at length 32.5 mm (1.28 in)
OUTER (18.9 – 22.3 kgf, 41.7 – 49.2 lbs)
at length 36.0 mm (1.42 in)
DR-Z125/LK8 ('08-MODEL) 10-3
30
(1.2)
26
(1.0)
0.08 – 0.13
(0.003 – 0.005)
0.13 – 0.18
(0.005 – 0.007)
0.010 – 0.037
0.030 – 0.057
5.500 – 5.512
5.475 – 5.490
5.455 – 5.470
—
—
—
—
0.9 – 1.1
(0.035 – 0.043)
—
—
—
76 – 90 N
186 – 219 N
Unit: mm (in)
LIMIT
—
—
—
—
—
—
—
—
—
0.35
(0.014)
0.05
(0.002)
0.5
(0.014)
2.5
(0.10)
—
0.03
(0.001)
36.0
(1.42)
39.3
(1.55)
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—