Service Data - Suzuki RM-Z250 Owner's Service Manual

19-2 SERVICING INFORMATION

SERVICE DATA

VALVE + GUIDE
ITEM
Valve diam.
Valve clearance (when cold)
Valve guide to valve stem
clearance
Valve stem deflection
Valve guide I.D.
Valve stem O.D.
Valve stem runout
Valve seat width
Valve head radial runout
Valve spring free length
Valve spring tension
STANDARD
IN.
EX.
IN.
EX.
IN.
(0.0004 – 0.0015)
EX.
(0.0012 – 0.0022)
IN. & EX.
IN. & EX.
(0.1772 – 0.1776)
IN.
(0.1762 – 0.1768)
EX.
(0.1754 – 0.1760)
IN. & EX.
IN. & EX.
IN. & EX.
IN.
EX.
IN. & EX. (13.7 – 15.7 kgf, 30.2 – 34.6 lbs)
at length 33.55 mm (1.321 in)
31
(1.22)
25
(0.98)
0.09 – 0.16
(0.004 – 0.006)
0.17 – 0.24
(0.006 – 0.009)
0.010 – 0.037
0.030 – 0.057
—
4.500 – 4.512
4.475 – 4.490
4.455 – 4.470
—
0.9 – 1.1
(0.035 – 0.043)
—
—
—
137 – 157 N
Unit: mm (in)
LIMIT
—
—
—
—
—
—
0.25
(0.010)
—
—
—
0.05
(0.002)
—
0.03
(0.001)
37.1
(1.46)
37.5
(1.48)
—