Honda CB77 - General Performance; Engine; Cylinder, Cylinder Head

MAINTENANCE STANDARDS (M ode l C7 2)
T his maintenance standards is lisled only about the doto of Model C72. In this list ,
dimentions without units indicate "mm" lupper step) and ,. inch" (down step),
and others acco rding to the units indicated.
1. GENERAL PERFORANCE
I I e m
I
Standard
I Repeidng limit I
Remarks
Comp ression pressu re
8.5 kg / em'
7.0 Check with kick
120.87 Ib / in'
99.54 Ib / i n'
Fuel consumption
42-45 km / e
29
35
km / h 121.7 mile / hi
26.04 - 27.90
17.98
mile / e
l ubricant consumption
120 ee / l 000 km
200 / 1000
or less
more
120 e c/ 620 mile
200/ 620 mile
130 km / h
90 less
Max. speed
80.60 mile / h
55.80 mile
The posture is lean-
ing for ward one
I
t hi rds of the body
I
"".
2 . ENGINE
A. Cylinder, Cylinder Head
II e m
I
Standard
I Repei,ine limit I
Remarks
Cylinder I nner
dio.
53.99-54.00
54.1
more
2. 1 255-2.1259
2.129
Max.
out of round within
0.001
0.05 more
0.00019
-
Toper
I within
0.001
0.05
mOre
0.00019
Over size of cylinder
Ove r size
0. 25
3 category of 0.25
0.00984
10.00981
over size
Cylinder head valve Width
1. 0-15
2.0 more
sheet
I
0.0393-0.0590
0.0787
Angle
I
45
0
Compression ratio
8.3
The capa ci ty of the
0.326
combustion chom.
C ylinder head gasket
Flatness
within 0.03
0.06 more
be r,
16.94 ee
surface
0.0011
0.0023
Cylinder head
gasket
Thickness
I
1.0 - 1.1
In case of binding
I
0.039 - 0.043
Cylinde r st ut nut
Tightness
2.1 kgm
I
15. 189 ft Ib