Suzuki LT-Z250 - Page 309

LT-Z250K6 (06-MODEL) 11-3
SERVICE DATA
VALVE + GUIDE Unit: mm (in)
ITEM STANDARD LIMIT
Valve diam.
IN.
32
(1.3)

EX.
28
(1.1)

Tappet 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
clearance
IN.
0.010  0.037
(0.0004  0.0015)

EX.
0.030  0.057
(0.0012  0.0024)

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.
5.475  5.490
(0.2156  0.2161)

EX.
5.455  5.470
(0.2148  0.2154)

Valve stem runout
IN. & EX. 
0.05
(0.002)
Valve head thickness
IN. & EX. 
0.5
(0.02)
Valve stem end length
IN. & EX. 
2.5
(0.10)
Valve seat width
IN. & EX.
0.88  1.08
(0.035  0.043)

Valve head radial runout
IN. & EX. 
0.03
(0.001)
Valve spring free length
IN. & EX. 
43.0
(1.69)
Valve spring tension
IN. & EX.
256  294 N
(26.1  30.0 kgf, 57.5  66.1 lbs)
at length 36.6 mm (1.44 in)

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