Suzuki DF40A Manual page 11

Valve / Valve Guide
Item
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 deflection
Valve stem runout
Valve head radial runout
Valve head thickness
Valve seat contact width
Valve spring free length
Valve spring preload
Valve spring squareness
Cylinder / Piston / Piston Ring
Item
Cylinder distortion
Piston to cylinder clearance
Cylinder bore
Cylinder measuring position
Piston skirt diameter
Piston measuring position
Cylinder bore wear
Piston ring end gap
Piston ring free end gap
Piston ring to groove
clearance
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 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.)
Unit
Limit mm (in.)
std. mm (in.)
Limit mm (in.)
std. mm (in.)
mm (in.)
std. mm (in.)
mm (in.)
Limit mm (in.)
std. mm (in.)
1st
Limit mm (in.)
std. mm (in.)
2nd
Limit mm (in.)
std. mm (in.)
1st
Limit mm (in.)
std. mm (in.)
2nd
Limit mm (in.)
std. mm (in.)
1st
Limit mm (in.)
std. mm (in.)
2nd
Limit mm (in.)
DF40A DF50A
26.6 (1.05)
21.5 (0.85)
0.18 – 0.22 (0.007 – 0.009)
0.28 – 0.32 (0.011 – 0.013)
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)
10.8 – 11.2 (0.43 – 0.44)
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)
1.0 (0.04)
0.7 (0.03)
1.15 (0.045)
0.5 (0.02)
1.1 – 1.3 (0.04 – 0.05)
1.1 – 1.3 (0.04 – 0.05)
33.1 (1.30)
31.8 (1.25)
97 – 113 (9.7 – 11.3, 21.4 – 24.9) at 28.5 mm (1.12 in)
89 (8.9, 19.6) at 28.5 mm (1.12 in)
2.0 (0.08)
DF40A DF50A
0.06 (0.002)
0.020 – 0.040 (0.0008 – 0.0016)
0.100 (0.0039)
72.500 – 72.520 (2.8543 – 2.8551)
50 (1.969) from cylinder top surface
72.470 – 72.490 (2.8531 – 2.8539)
8 (0.315) from piston skirt end
0.10 (0.0039)
0.15 – 0.30 (0.0059 – 0.0118)
0.70 (0.028)
0.30 – 0.45 (0.0118 – 0.0177)
1.00 (0.039)
Approx 8.8 (0.3465)
7.0 (0.2756)
Approx 10.0 (0.3937)
8.0 (0.3150)
0.030 – 0.070 (0.0012 – 0.0028)
0.12 (0.005)
0.020 – 0.060 (0.0008 – 0.0024)
0.10 (0.004)
General Information:
Data
DF60A
Data
DF60A
0A-6