PISTON/CYLINDER |
Item |
Standard |
Limit |
Clearance, Piston/Cylinder |
0.05~0.06 |
0.12 |
Inner dia., Cylinder |
56.0~56.05 |
56.65 |
Outer dia., Piston (25mm from lower end) |
55.93~55.945 |
55.88 |
Surface level, Cylinder head |
0~0.03 |
0.15 |
Free gap, Piston ring (1st) |
4.7 |
3.76 |
Free gap, Piston ring (2nd) |
4.7 |
3.76 |
Assembled gap, Piston ring (1st) |
0.15~0.30 |
0.75 |
Assembled gap, Piston ring (2nd) |
0.15~0.30 |
0.75 |
Clearance, Piston ring/Ring slot (1st) |
0.03~0.09 |
- |
Clearance, Piston ring/Ring slot (2nd) |
0.02~0.06 |
- |
Inner dia., Piston pin hole |
14.002~14.010 |
14.034 |
Compression (kg/cm2) |
8 |
5.6 |
Compression difference between each cylinder
(kg/cm2) |
- |
1 kg/cm2 |
|
|
CRANK SHAFT |
Item |
Standard |
Limit |
Outer dia., Piston pin |
13.995~14.000 |
13.965 |
Inner dia., Con-Rod Small end |
18.003~18.011 |
18.039 |
End-Play, Con-Rod Small end |
- |
3 |
Thrust gap, Con-Rod Small end |
0.2~0.62 |
1 |
Thrust gap, Con-Rod Big end |
0.2~0.9 |
1 |
End-Play, Crank shaft |
0~0.05 |
0.08 |
|
|
OIL PUMP |
Item |
Standard |
Oil consumpsion (Oil pump full open, 2,000r.p.m.,
2 min.) |
7.1~7.6 cc |
Adjust method, Oil pump control lever |
Center mark |
|
|
CLUTCH/PRIMARY GEAR |
Item |
Standard |
Limit |
Free play, Clutch lever |
10~15 |
|
Thicness, Drive plate |
2.8 |
2.5 |
Strain, Drive plate |
0~0.25 |
0.4 |
Thicness, Driven plate |
1.54~1.66 |
- |
Strain, Driven plate |
0~0.1 |
0.2 |
Free length, Clutch spring |
35.8 |
34.01 |
Primary gear backrush |
0.05 |
|
|
|
TRANSMISSION |
Item |
Standard |
Limit |
Thickness, Gear shift fork (1) |
4.8~4.9 |
- |
Thickness, Gear shift fork (2) |
4.8~4.9 |
- |
Thickness, Gear shift fork (3) |
4.8~4.9 |
- |
Width, Gear shift fork groove (1) |
5.0~5.1 |
- |
Width, Gear shift fork groove (2) |
5.0~5.1 |
- |
Width, Gear shift fork groove (3) |
5.0~5.1 |
- |
Gap, Gear shift fork/Groove (1) |
0.1~0.3 |
0.5 |
Gap, Gear shift fork/Groove (2) |
0.1~0.3 |
0.5 |
Gap, Gear shift fork/Groove (3) |
0.1~0.3 |
0.5 |
Bend, Shift fork shaft |
0~0.03 |
0.05 |
|
|
CARBULATOR |
Item |
Standard |
Carbulator type |
VM28 |
Main bore |
28 |
Idoling r.p.m. |
1,500 |
Fuel level |
5.5 |
Main jet (M.J.) |
120 |
Jet needle (J.N.) |
5CM1-2 |
Needle jet (N.J.) |
P-5 |
Throttle valve (C.A.) |
2.5 |
Pilot jet (P.J.) |
25 |
Air screw (A.S.) |
1-5/8 |
Valve seat (V.S.) |
2.5 |
Starter jet (G.S.) |
50 |