Suzuki DF 90 Service Manual page 421

Item
VALVE/VALVE GUIDE
Valve diameter
Tappet clearance
IN
(Cold engine
EX
condition)
Valve seat angle
IN
EX
Valve guide to
IN
valve stem
clearance
EX
Valve guide
IN,EX
inside diameter
Valve guide
protrusion IN,EX
Valve stem
IN
outside diameter
EX
Valve stem end
IN
deflection
EX
Valve stem runout
IN,EX
Valve head
radial runout IN,EX
Valve head
IN
thickness
EX
IN
Valve seat
contact width
EX
Valve spring free
length
Valve spring tension
Valve spring
squareness
Unit
mm (in)
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
STD mm (in)
STD mm (in)
mm (in)
Limit
mm (in)
Limit
Limit mm (in)
Limit mm (in)
mm (in)
STD
mm (in)
Limit
mm (in)
STD
mm (in)
Limit
mm (in)
STD
mm (in)
STD
mm (in)
STD
mm (in)
Limit
STD N (kg, Ibs)
Limit
N (kg, Ibs)
mm (in)
Limit
DF90/115/140 "K3" ('03) MODEL 13-15
DF140(W)T
33 (1.3)
28 (1.1)
0.23 – 0.27 (0.009 – 0.011)
0.23 – 0.27 (0.009 – 0.011)
°
15
15
0.020 – 0.047 (0.0008 – 0.0019)
0.070 (0.0028)
0.045 – 0.072 (0.0018 – 0.0028)
0.090 (0.0035)
6.000 – 6.012 (0.2362 – 0.2367)
13.5 (0.53)
5.965 – 5.980 (0.2348 – 0.2354)
5.940 – 5.955 (0.2339 – 0.2344)
0.14 (0.006)
0.18 (0.007)
0.05 (0.002)
0.08 (0.003)
1.0 (0.04)
0.7 (0.03)
1.2 (0.05)
0.7 (0.03)
1.1 – 1.3 (0.04 – 0.05)
1.1 – 1.3 (0.04 – 0.05)
42.7 (1.68)
41.0 (1.61)
167 – 193 (16.7 – 19.3, 36.8 – 42.5) for 32.6 mm (1.28 in.)
151 (15.1, 33.3) for 32.6 mm (1.28 in.)
2.0 (0.08)
Data
DF140Z
°,
, 45 60°
° °
, 45