Suzuki DF2.5 General Information Manual page 11

Item
VALVE/VALVE GUIDE
Valve diameter
EX
Valve
IN STD
clearance
(Cold engine
EX STD
condition)
Valve seat angle
EX
Valve guide STD
IN
to valve stem
Limit
clearance
STD
EX
Limit
Valve guide
IN,
inside STD
EX
diameter
Valve stem
IN STD
outside
diameter
EX STD
Valve stem IN,
Limit
deflection EX
Valve stem IN,
Limit
runout EX
Valve head IN,
Limit
radial runout EX
Valve head IN,
Limit
thickness EX
Valve seat IN,
STD
contact width EX
Valve spring free STD
length
Limit
Valve spring tension STD
Limit
Unit
IN mm (in)
mm (in)
mm (in)
mm (in)
IN —
—
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
mm (in)
N (kg, lbs)
N (kg, lbs)
20.0 (0.79)
18.0 (0.71)
0.13 – 0.17 (0.005 – 0.007)
0.13 – 0.17 (0.005 – 0.007)
0.010 – 0.037 (0.0004 – 0.0015)
0.075 (0.0030)
0.025 – 0.052 (0.0010 – 0.0020)
0.090 (0.0035)
4.000 – 4.012 (0.1575 – 0.1580)
3.975 – 3.990 (0.1565 – 0.1571)
3.960 – 3.975 (0.1559 – 0.1565)
0.35 (0.014)
0.05 (0.002)
0.08 (0.003)
0.8 – 1.0 (0.03 – 0.04)
22.42 (0.883)
21.52 (0.847)
36.5 – 41.9 (3.65 – 4.19, 8.05 – 9.24) for 15 mm (0.6 in)
33.3 (3.33, 7.34) for 15 mm (0.6 in)
GENERAL INFORMATION 1-11
Data
DF2.5
45°
45°
0.5 (0.02)