Service Data - Suzuki TU250X Service Manual

10-30 SERVICING INFORMATION

SERVICE DATA

VALVE + 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
Valve spring tension
STANDARD
IN.
EX.
IN.
EX.
IN.
(0.0010 – 0.0020)
EX.
(0.0016 – 0.0026)
IN. & EX.
(0.2165 – 0.2170)
IN.
(0.2150 – 0.2156)
EX.
(0.2144 – 0.2150)
IN. & EX.
IN. & EX.
IN. & EX.
IN. & EX.
IN. & EX.
IN. & EX.
IN. & EX.
IN. & EX. (18.9 – 22.3 kgf, 41.7 – 49.2 lbs)
at length 36.0 mm (1.42 in)
34
(1.3)
29
(1.1)
0.03 – 0.08
(0.001 – 0.003)
0.08 – 0.13
(0.003 – 0.005)
0.025 – 0.052
0.040 – 0.067
5.500 – 5.512
5.460 – 5.475
5.445 – 5.460
—
—
—
—
0.9 – 1.1
(0.035 – 0.043)
—
—
185 – 219 N
Unit: mm (in)
LIMIT
—
—
—
—
—
—
—
—
—
0.35
(0.014)
0.05
(0.002)
0.5
(0.02)
2.1
(0.08)
—
0.03
(0.001)
39.3
(1.55)
—