Suzuki EN125-2A, Service Manual

Page: 166 / 208

SERVICING INFORMATION 7-14
SERVICE DATA
VALVE + GUIDE
ITEM STANDARD LIMIT
Valve diam
Valve clearance
(when cold)
Valve guide I.D.
Valve stem O.D.
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)
IN.
EX.
IN.
EX.
IN.& EX
IN.
EX.
IN.& EX
IN.& EX
IN.& EX
IN.& EX
IN.& EX
INNER
OUTER
INNER
OUTER
25.5
22.5
0.04 0.07
-
0.13 0.18
-
5.000 5.012
-
4.975 4.990
-
4.955 4.970
-
-
-
-
0.9 1.1
-
-
-
-
3.77 4.43 kg at length 26.78 mm
-
8.86 10.4 kg at length 29.78 mm
-
-
-
-
-
-
-
-
0.05
0.5
2
0.03
31.2
33.6
-
-
-
Unit: mm
CA CYLINDER HEAD
Unit: mm
ITEM STANDARD LIMIT
IN.
EX.
IN.& EX
IN.& EX
IN.& EX
IN.& EX
Cam height
Camshaft journal O.D.
Camshaft runout
Cam chain 20-pitch length
Rocker arm I.D.
Rocker arm shaft O.D.
Cylinder head distortion
Cylinder head cover distortion
-
-
-
-
-
21.959 21.980
12.000 12.018
11.966 11.984
33.350
33.000
0.10
129.9
0.05
0.05