Torque Values - Honda CB250N Shop Manual

General information
Torque Values
i—
Standard
Fastener
Type
Torque
N-m
(kg-m,
ft-lb)
Fastener Type
Torque
N-m
(kg-m,
ft-lb!
5
mm
hsx
bolt
and
nut
6
mm
hex
bolt
and nut
8
mm
hex
bolt
and
nut
10
mm
hex
bolt
and
nut
12
mm
hex
bolt
and
nut
5
(0.5,
3.6)
10
(.1.0,
7}
22
(2.2, 16)
35
(3.5,
25)
55
(5.5,
40}
5
mm
screw
6
mm
screw
6
mm
flange
bolt
(8
mm
head)
6
mm
flange
bolt
(TO
mm
head) and
nut
8
mm
flange bolt
and
nut
10
mm
flange bolt
and
nut
4.(0.4, 2.9)
9
(0.9, 6.5)
9
(0.9, 6.5)
12
(1.2, 9)
27
(2.7,
20)
40
(4.0,
29)
Torque
specifications
listed
below
are for
important
fasteners.
Others should be tightened to standard torque values
listed
above.
NOTE
1
.
Apply
sealant
to
the threads.
'
2.
Apply
a locking
agent to the threads.
3.
Apply
molybdenum
disulfide
oil
to the threads and
flange surface.
4.
Left
hand
threads.
5.
Stake.
6.
Apply
oil
to the threads
and
flange surface.
7.
Apply clean engine
oil
to the O-ring.
8.
Torque wrench
scale reading using a special
tool.
9.
Apply grease
to
the threads
and flange surface.
1
0.
UBS
bolt.
1 1
.
U-nut.
1
2.
Alock
bolt.
Do
not reuse.
.
I
L
—
L-iiijiiie;
Thread Torque
Item Q'ty
dia.
(mm)
N-m
(kg-m,
ft-lb)
Remarks
Lubrication System:
Oil
pump
mounting screw
3 6
10
(1.0, 7)
Cylinder Head/Cylinder:
Spark
plug 2
10\ '12 (1.2, 9)
Valve
adjusting lock nut
4
5
10
[1.0. 7)
Cylinder'
head/camshaft holder nut
8 8
23
(2.3,
17)
Cylinder head
bolt
3 6
12
(1.2, 9)
Cam
sprocket
bolt
2 7
.
20
(2.0, 14.)
Note
2
Cylinder
head
cover
bolt
2 6 10
(1.0,
7)
Clutch/Gearshift Linkage:
Clutch
lifter bolt
4
6
12
(1.2, 9)
•Clutch center
lock nut
1
16'
53
(5.3,
38)
Note
5
Shift
drum
stopper
arm
bolt
1
6
12
|i:2,
9)
Gearshift return spring
pin
.1
8
25
(2 5,
18)
Note 2
Primary
drive
gear
lock nut
1
16
54
(5.4,
39)
Crankcase/Crankshaft:
JK
Drive
sprocket
bolt 2 6
12
(1.2,
9)
Oil
drain bolt
1
. .
12
25
(2.5,
18)
Crankshaft mounting
bolt 5 8
.
23
{2/3,
1
7)
Crankshaft
mounting
nut
1
6
-
12
(1.2, 9)
.
Oil
passage
plate
mounting screw
3 6
.
10
(1.0,
7)
Note
2
Starter Clutch/Alternator:
Flywheel
bolt
1
10
60
(6,0,
43)
Starter clutch
mounting screw
3
6
.
9
(0.5,
6.5)
Note
2,
5
Ststor
mounting screw
3
.
'5
."6
(0.6,
4.3)
Stator wire
clamp screw
.
1
5
6
(0.6,
4.3)
Pulse generator
mounting screw
2
:
=
6
,
:
'
10
(1.0.
7)
Starter
motor
terminal nut
1
6
|
6
(0.6.,
4.3)
.
|
1-14