Suzuki GN125F, Service Manual

Page: 139 / 148

S E RV I C I N G I N F O R M AT I O N
7-11
SERVICE DATA
VALVE
IN.
IN.
IN.
EX
.
EX
.
EX
.
IN & EX
. .
IN & EX
. .
IN & EX
. .
IN & EX
. .
IN & EX
. .
Inner
Outer
ITEM
Valve diam.
Valve clearance (when cold)
Valve stem O.D.
Valve stem deflection
Valve stem runout
Valve head thickness
Valve seat width
Valve head radial runout
Valve spring
free length (IN.& EX.)
STANDARD
25.5
22.5
0.04-0.07
5.000-5.012
4.975-4.990
4.955-4.970
0.9-1.1
Unit: mm
LIMIT
0.35
0.05
0.5
0.03
31.24
33.58
CA CYLINDER HEAD
ITEM
Cam height
Camshaft journal oil clearance
Rocker arm I.D
Rocker arm shaft O D
.
Cylinder head distortion
Cylinder head cover distortion
Unit: mm
LIMIT
33.35
33.00
0.05
0.05
STANDARD
IN & EX
. .
IN & EX
. .
IN.
EX
.
33.65-33.69
33.30-33.34
0.021-0.055
12.0-12.018
11.977-11.995
0.15
Valve guide to valve stem
clearance
Valve guide I.D. IN.& EX.
IN.
EX
.
0.13-0.18
0.010-0.037
0.03-0.057
IN & EX
. .
Camshaft journal holder I.D.
IN & EX
. .
IN & EX
. .
IN & EX
. .
Camshaft journal O.D.
22.012-22.025
21.970-21.991
0.1 Camshaft runout