Suzuki GZ250 1999, Service Manual

Page: 237 / 250

10-4 GZ250K2 (’02-MODEL)
SERVICE DATA
VALVE + GUIDE
Unit: mm (in)
ITEM STANDARD LIMIT
Valve diam.
IN.
26
(1.0)
———
EX.
22
(0.9)
———
Valve clearance (when cold)
IN.
0.03 – 0.08
(0.001 – 0.003)
———
EX.
0.08 – 0.13
(0.003 – 0.005)
———
Valve guide to valve stem
IN.
0.025 – 0.052
clearance
(0.0010 – 0.0020)
———
EX.
0.040 – 0.067
(0.0016 – 0.0026)
———
Valve stem deflection
IN. & EX.
0.35
———
(0.014)
Valve guide I.D.
IN. & EX.
5.500 – 5.512
(0.2165 – 0.2170)
———
Valve stem O.D.
IN.
5.460 – 5.475
(0.2150 – 0.2156)
———
EX.
5.445 – 5.460
(0.2144 – 0.2150)
———
Valve stem runout
IN. & EX.
0.05
———
(0.002)
Valve head thickness
IN. & EX.
0.5
———
(0.02)
Valve stem end length
IN. & EX.
3.6
———
(0.14)
Valve seat width
IN. & EX.
0.9 – 1.1
(0.035 – 0.043)
———
Valve head radial runout
IN. & EX.
0.03
———
(0.001)
Valve spring free length
IN. & EX.
40.1
———
(1.58)
Valve spring tension 18.4 – 21.6 kgf
IN. & EX.
(40.56 – 47.62 lbs)
———
at length 35.0 mm (1.38 in)