Honda CB77 - Page 15

.'
'I t e m
I
Standard I Repo; , ;og Um ;t I Adjust;og Po;ot I
Remarks
Oil nlfer No. of tooth 24
!
drive
It e m
I
Standard
I Repo;, ;ng UmH I Adju sting Foint t
Remarks
Pi st on ring
gr
oove
Groove 1. 505 -1. 52
1 .55 more Exchange
ITo pi
width 0.0593-0.0598
0.061
sprocket
I
In. dio. 25.0- 25.01
26.0 mor e Exchange
Piston ring groove
Groove
1.505- 1. 52
1 .55 more Exchange
ISecondl
width
0.0593- 0.0598
0.061
0.984 - 0.984
1.023
I
45.15 - 45 .3 48
I
45.05 less
Exchange
t
Mea su ri ng
Piston ring g r oove Groove
2.80 5-2 .82
2.95 more
10ili width
0. 01 1-0 .01 11
0.0116
bo tt om dio.
1.777 - 1.785
1.773
Con necting r od small
In. dia.
15.0 16 ~ 15.043 15.1 more E xchange
P is t on
ring gr oove
Out. dia.
4 8. 1-4 8.2
47.9 less Exchange
1.893 - 1.897
1.885
end
0.591 - 0.592 0.594
Twist
without 0.02 0. 1 more
E xch a nge
*
53.3-53.4
• 5 3.1 less
Exchan ge
2.098- 2. 102
2.090
0.0007 0.0039
.ad big
T hickness
17.97 -1 8.03
17.5 less
Exchange
!
~
Connecting
Piston & cylinde r Min.
0.06 mo re Exchange
clea ra nce
0.0023
end 0.707 - 0.709
0.688
In . dio.
3 1.005 - 31.015
31.04
mo re
Exchange
t
Piston ove rsize
Ove r size
0.25
Exchange
3 cotegory of 0.25
0.0098
10.00981 oversize
1.220 -1 .221
1 .2 22
Axial
0.07 -0.33
0.5 more
E xchange
cleara nce
0.002- 0.012 0.0196
Diag onal
0- 0008 0.05 more
Exc hange
cleara nce
0- 0.0003
0.0019
Needle ro lle r
Oul. dio.
2.502 - 2.51
2.5 less
,
0.098
,
0.0985- 0.0988
Le ngth
13.45 -1 3.5
0.529 - 0.53 1
No. reqd.
48 pes
Pi st on ring Wid th
1 .45-1.46 1.4 le ss
Exchange
ITopl
0.057 - 0.0574 0.0551
I
•
1 .45-1.465
•
1.4 less
Exchange
0.057 - 0.0576
•
0.0551
Pi ston ring
I
Thickness
I
2.4-2.6
2.2 less
Exchange
I
ISecondl
I
0.0944 - 0.1 02
0.0866
*
2.6·- 2.8
•
2.4 less
Exchange
I
0.0944 -0 .1 10
0.0944
I
Pi ston ring Ten sion
I
0.62-0.82 kg I 0.5 kg less
Exchange Tangential tension
ITopl
1.366
-1 .807Ib,
1.I021bs
Pi ston pin
Out. dio.
14.994 -15. 0
14.95 less
Excha nge
0.590- 0.5905 0.588
Overall
45 .9 -46 .1
(Referential value)
length
1.807 - 1.814
•
5 1. 9- 52.1
2.043-2.05 1
Piston head
Oio.
53.65- 53.7 53.6 less
E xchange
2.1 12-2 .114 2.1 10
•
59.65 -5 9.7
*
59.6 less
Exchange
2.348- 2.356
2.346
Piston skirt
Die.
53.98- 54.0 53.9 less
E xchange
At the pin boss
2.125 -2. 126 2.122 diag onal direction
• 0.7 ~ 1. 0 kg
• 0.6 kg less
Exchange
1.543- 2.204Ibs
1.322 Ibs
, End gop 0.15-0.35
0.6 more
Re ctify the
When attaching
0.0059-0.013
0.023
nar r ow ring
•
0.2-0.4
'" 0.65 more
Exchange th€
,
0. 0078 - 0 .0 157
0.0255 wide ring
Piston ring
Width
I
1.48 -1.4 95
1.43 less Exchange
(Seco nd I 0.0582-00588
0.0562
I
I
2.4-2.6
2.2 le ss
,
Exchange
Th ickness
I.
I
,
0.0944 - 0. 102
0.0866
,
I
I
2.6 - 2.8
*
2.4 less Exchange
0.0944-0. 110
0.0944
•
59.98-6 0.0
•
59.9 less
E xch a nge
2.361 - 2.362
2.358
Piston
Ta per First step
out-s ta nd ard E xchange
D- 0.06-0 07
Ten sion
0.6-0.8kg
0.5 kg less
Ex change
T angential tensi on
I
1.322 -1 .763Ibs
1.1 02 Ibs
•
0.7 -1.0 kg
• 0.6 kg less
Exchange
I
D-0.002 - 0.002
,
I
1.543 ! 2.2041bs 1.322 Ibs
Second step
Measure at the
End gop
0.15- 0.35
0.6 more Rectify the
When attaching
D- 0.12- 0.14
pin boss diagonal
D -000 4 - 0.005
direction
El lips e
0.14 - 0.16 oul-standa rd E xchange
Measu re at 5 m/ m
0.005 - 0.006
uppe r point from
the foo t of ski rt
0.0059- 0.0 13
I
0.023 narrow ri ng
• 0.2- 0 .4
* 0.65 more
E xchang e the
I
I
0.0078-0.0157
I
0.0255
I
wide ring
I
23
22