2-3
SPEC
MAINTENANCE SPECIFICATIONS
Item
Standard
Limit
Cylinder head:
Combustion chamber capacity
8.4 cm
3
…
(0.296 Imp oz, 0.284 US oz)
Warp limit
…
0.03 mm (0.0012 in)
Cylinder:
Bore size
54.000~54.014 mm
54.1 mm (2.130 in)
(2.1260~2.1265 in)
Taper limit
…
0.05 mm (0.0020 in)
Out of round limit
…
0.01 mm (0.0004 in)
Piston:
Piston size/
53.957~53.972 mm
…
(2.1243~2.1249 in)
Measuring point*
17.5 mm (0.69 in)
…
Piston clearance
0.040~0.045 mm
0.1 mm (0.004 in)
(0.0016~0.0018 in)
Piston offset
0.5 mm (0.019 in)/EX-side
…
Piston pin:
Piston pin outside diameter
14.995~15.000 mm
14.975 mm
(0.5904~0.5906 in)
(0.5896 in)
Piston ring:
Sectional sketch
Plain
…
B=1.0 mm (0.039 in)
…
T=2.35 mm (0.093 in)
…
End gap (installed)
0.5~0.7 mm (0.020~0.028 in)
1.2 mm (0.047 in)
Side clearance (installed)
0.035~0.070 mm
0.1 mm (0.004 in)
(0.0014~0.0028 in)
Crankshaft:
Crank width “A”
55.90~55.95 mm
…
(2.201~2.203 in)
Runout limit “C”
0.03 mm (0.0012 in)
0.05 mm (0.0020 in)
Connecting rod big end
side clearance “D”
0.06~0.64 mm (0.002~0.025 in)
…
Small end free play “F”
0.8~1.0 mm (0.031~0.039 in)
2.0 mm (0.08 in)
Clutch:
Friction plate thickness
2.9~3.1 mm (0.114~0.122 in)
2.8 mm (0.110 in)
Quantity
8
…
Clutch plate thickness
1.5~1.7 mm (0.059~0.067 in)
…
Quantity
7
…
Warp limit
…
0.2 mm (0.008 in)
Clutch spring free length
40.1 mm (1.579 in)
38.1 mm (1.500 in)
Quantity
5
…
Clutch housing thrust clearance
0.15~0.26 mm (0.006~0.010 in)
…
Clutch housing radial clearance
0.014~0.046 mm
…
(0.0006~0.0018 in)
Clutch release method
Inner push, cam push
…
EC212000
MAINTENANCE SPECIFICATIONS
EC212100
ENGINE
1C3-9-32-2A 4/29/06 10:17 AM Page 4