Suzuki DF150 Service Manual page 19

1-14 GENERAL INFORMATION
Item
VALVE/VALVE GUIDE
Valve diameter
Tappet clearance
IN
(Cold engine condition)
EX
Valve seat angle IN
EX
Valve guide to valve
IN
stem clearance
EX
Valve guide inside IN,
diameter
EX
Valve guide protrusion IN,
EX
Valve stem outside IN
diameter
EX
Valve stem deflection
IN
EX
Valve stem runout IN,
EX
Valve head radial IN,
runout
EX
Valve head thickness
IN
EX
Valve seat contact IN
width
EX
Valve spring free length
Valve spring tension
Valve spring squareness
Unit
IN mm (in.)
EX mm (in.)
STD mm (in.)
STD mm (in.)
—
—
STD mm (in.)
Limit mm (in.)
STD mm (in.)
Limit mm (in.)
STD mm (in.)
STD mm (in.)
STD mm (in.)
STD mm (in.)
Limit mm (in.)
Limit mm (in.)
Limit mm (in.)
Limit mm (in.)
STD mm (in.)
Limit mm (in.)
STD mm (in.)
Limit mm (in.)
STD mm (in.)
STD mm (in.)
STD mm (in.)
Limit mm (in.)
STD N (kg, lbs) 147 – 173 (15.0 – 17.7, 33.1 – 39.0) for 31.1 mm (1.22 in.)
Limit N (kg, lbs)
Limit mm (in.)
Data
DF150T/Z
35.9 (1.4)
31.4 (1.2)
0.23 – 0.27 (0.009 – 0.011)
0.30 – 0.34 (0.012 – 0.013)
15°, 45°, 60°
15°, 45°, 60°
0.020 – 0.047 (0.0008 – 0.0019)
0.070 (0.0028)
0.045 – 0.072 (0.0018 – 0.0028)
0.090 (0.0035)
5.500 – 5.512 (0.2165 – 0.2170)
11.4 – 11.8 (0.45 – 0.46)
5.465 – 5.480 (0.2152 – 0.2157)
5.440 – 5.455 (0.2142 – 0.2148)
0.14 (0.006)
0.18 (0.007)
0.05 (0.002)
0.08 (0.003)
1.1 (0.04)
0.7 (0.03)
1.05 (0.04)
0.7 (0.03)
1.1 – 1.3 (0.04 – 0.05)
1.1 – 1.3 (0.04 – 0.05)
40.2 (1.58)
38.6 (1.52)
136 (13.9, 30.6) for 31.1 mm (1.22 in.)
2.0 (0.08)
DF175T/Z
19