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Honda XR80R Service Manual

Honda XR80R
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GENERAL INFORMATION
CYLINDER
HEAD/VAlVES
,
,e
Un'
!'
mm
r )
I
TE
M STANDA
RD
SE
RV
IC
E LIMIT
Cylinder XA100R
1127
kPa
(11.5
kg/fern'.
164
p~il
at
800
r
pm
compression
XA80A
1176
kP"
(120kgl{em'.
171
psil
at 1
.000
rpm
V~
\
ve.
Valve
clea
ra
nce
IN
0.05
(0
.002)
valve
spring.
EX
0.05
(0
.0021
valve
gu
ide
Valve
spring
free I(!ngth
~
_
r
28.05 (1.104)
27
.6 (1.09)
Outer
34.80 (1.370) 33.7 (1.33)
Valve
stem
0 .0.
IN 5.450 - 5.
465
(
0.21
45 -
02151)
5.4
20
(O
.
~.~~
EX
5.'30
-544
5
(0
.2137 _ 0.2
14
3)
5.
400
(0
.2126)
Valve
gu
ide
1.0.
IN
5.475 - 5.465 (0.2155 _ 0
.21
59)
5.5010.217)
EX
5.475 -
5465
(0.2155 _ 0.2159)
5.50
10.217)
Stem
\0
guide
clearance
IN 0,010 - 0.0
35
10.0004 - 0.0013) 0.08
(0
.003)
EX
0,030
0,05510.0012 - 0.0022)
0.
10
(0
.004)
Valve seat
width
1.70 (0.
06
)
2.1
(0
.
081
Rocker arml Rocker arm ).0.
10.000 10.015
(0.3937 - 0.
39
4
3)
10
.1 (0.40)
Shaft
Rocker
arm
shaft
0.0
. 9.978 - 9.987 (O.3928 - 0.3932)
9.91
(0.390)
Rocker
arm
to shafl cl
ea
rance
0.013 - 0.
037
W.
OOOS
- 0.0014) 0,08
10.003)
- -
Camshaft
Cam
lobe
XR10
0R
'N
27,860 - 28.040 11,0968 - 1,1039)
27
,80 (1.095)
hei
ght
EX 27.776 - 27.950 (1,0935 - 1,1004)
27,70 (
1.
095)
XR80A
'N
28.017 - 28.197 (1,1030 - 1.
11
02)
27
.95(1 .100)
EX
27.835 - 28.015 (1.0959 - 1.1102)
27
.
75(
1.093)
Journa
l
X
R100R
Rr
ght
19.950 -
19
,968 (0.7854 - 0.786 11 19.90
(O.783)
0 .0 ,
L,
ft
19.950 19.968 (0.7854 - 0.786
11
19
.
90
10
.783)
X
R80R
Ri
ght
19.950 - 19.968 (0.7854 - 0.786
11
19
.
90
(0.783)
L,ft
19.950 -
19
.968 (0.7854 -
0.78611
19.90
(0
.
7831
Cylinder head
war
pago
0.
10
(0
.
00
4)
Camshaft
holder
1.0
XR100R
20
,008 -
20
.063 (0.7877 - 0.7899) 20.15 (0.793)
XR80R
20.008 - 20.063
(0
.7877 -
0.76991
2
0.
15 (0.793)
Oil clearance
XR
100A 0.040 -
0.
113 W.0016 - 0.00
44
) 0.20 (0.008)
XR80R
0.040 - 0.1
13
(0.0016 -
000
44
)
0.
20
(0
.
0081
1-9

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Honda XR80R Specifications

General IconGeneral
Displacement79cc
Compression Ratio9.7:1
Fuel SystemCarburetor
IgnitionCDI
Transmission5-speed
Final DriveChain
Front BrakeDrum
Rear BrakeDrum
Front Tire2.50-16
Rear Tire3.00-14
Ground Clearance9.1 inches
Engine TypeAir-cooled single-cylinder four-stroke
Bore x Stroke47.5mm x 45mm
Rear SuspensionSingle shock

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