41
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S o m e i m p o r ta n t s ta r d a r d d i m e n s i o n s
(
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(
E N G I N E
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Cylinder head/valve
ITEM
STANDARD
Air pressure in cylinder
13
±
1kg/cm
2
Inlet
0.12~0.16mm
Valve clearance
Exhaust
0.12~0.16mm
Inlet
29.625
±
0.05
Camshaft cam impeller height
Exhaust
29.038
±
0.05
Inlet
4.975~4.990 mm
Valve tappet
Exhaust
4.955~4.970 mm
Inlet
5.000~5.012mm
Valve pipe
Exhaust
5.000~5.012mm
Inlet
0.010~0.037mm
Valve
Valve shaft-valve pipe
clearance
Exhaust
0.030~0.057mm
Inner spring
32.3
±
0.05mm
Natural distance of spring
Outer spring
35.0
±
0.05mm
Cylinder/piston
Item
Standard
A
B
Cylinder inner diameter
52.400~52.405mm
52.405~52.410 mm
Piston diameter
52.370~52.375mm
52.375~52.380mm
Cylinder and piston
Clearance of piston and cylinder
0.025~0.035mm
0.025~0.035mm
Piston pin hole
15.002~15.005mm
15.005~15.008mm
Piston pin
Piston pin
14.997~15.000mm
15.000~15.003mm
第一道环
0.013-0.045mm
Clearance of piston
ring and groove
第二道环
0.013-0.045mm
第一道环
0.1-0.2mm
第二道环
0.1-0.2mm
Piston ring
活塞环开口间隙
油
环
0.3-0.4mm
Summary of Contents for ARN125
Page 5: ...5 A GENERAL INFORMATION...
Page 11: ...11 B PRODUCT...
Page 13: ...13 1 2 3 4 5 6...
Page 14: ...14 7 8 9 10 11 12...
Page 24: ...24...
Page 37: ...37 F Lubrication system Rocker arm Camshaft assy Crankshaft assy Oil pump assy Fileter assy...
Page 52: ...52...
Page 62: ...62...
Page 63: ...63 Charging system circuit diagram AC circuit diagram...
Page 72: ...72 C OTHERS...