Suzuki DF 40 Service Manual page 355

8 DF40/50 "K7" ('07) MODEL
Item
VALVE/VALVE GUIDE
Valve diameter
Tappet clearance
(Cold engine
condition)
Valve seat angle
Valve guide to valve
stem clearance
Valve guide inside
diameter
Valve guide
protrusion
Valve stem outside
diameter
Valve stem end length
Valve stem end
deflection
Valve stem runout
Valve head radial
runout
Valve head thickness
Valve seat contact
width
Valve spring free length
Valve spring tension
Valve spring sequareness
Unit
IN mm (in)
EX mm (in)
IN STD mm (in)
EX STD mm (in)
IN —
EX —
STD mm (in)
IN
Limit mm (in)
STD mm (in)
EX
Limit mm (in)
IN,
STD mm (in)
EX
IN,
STD mm (in)
EX
IN STD mm (in)
EX STD mm (in)
IN,
Limit mm (in)
EX
IN Limit mm (in)
EX Limit mm (in)
IN,
Limit mm (in)
EX
IN,
Limit mm (in)
EX
STD mm (in)
IN
Limit mm (in)
STD mm (in)
EX
Limit mm (in)
IN STD mm (in)
EX STD mm (in)
STD mm (in)
Limit mm (in)
STD N (kg, lbs)
Limit N (kg, lbs)
Limit mm (in)
Data
DF40
24.6 (0.97)
21.5 (0.85)
0.18 – 0.24 (0.007 – 0.009)
0.18 – 0.24 (0.007 – 0.009)
30°, 45°
15°, 45°
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)
11.0 (0.43)
5.465 – 5.480 (0.2152 – 0.2157)
5.440 – 5.455 (0.2142 – 0.2148)
3.20 (0.126)
0.14 (0.006)
0.18 (0.007)
0.05 (0.002)
0.08 (0.003)
1.0 (0.04)
0.7 (0.03)
1.15 (0.045)
0.5 (0.02)
1.80 – 2.20 (0.071 – 0.087)
1.65 – 2.05 (0.065 – 0.081)
33.1 (1.30)
31.8 (1.25)
97 – 113 (9.7 – 11.3, 21.4 – 24.9) for 28.5 mm (1.12 in)
89 (8.9, 19.6) for 28.5 mm (1.12 in)
2.0 (0.08)
DF50