Yamaha BR250F Service Manual page 147

Part to be tightened
Tightening torque
Remarks Thread size
Nm rn-kq ft-lb
Steering column and gate
M8 x P1.25 13.7 1.37 10 Use lock washer
Steering tie rod adjusting nut
M10 x P1.25 25
2.5
18 Loctite®
Steering lower bracket
M8 x P1.25 13.7 1.37 10 Use lock washer
Installation of steering column 1,2
M8 x P1.25 13.7 1.37 10
Steering relay adjusting nut M10 x P1.25
25 2.5 18 Loctite®
GENERAL TORQUE SPECIFICATIONS
This chart specifies torque for standard fas-
teners with standard I.S.O. pitch threads.
Torque specifications for special components
or assemblies are included in the applicable
sections of this book. To avoid warpage,
General torque
A
B
specifications
(Nut)
lBoltl
Nm rn-kq
10 mm 6 mm
6 0.6
12 mm 15 1.5
14 mm 30 3.0
55 5.5
85
130
CONVERSION TABLES
METRIC TO INCH SYSTEM
Known Multiplier Result
m-kg 7.233 ft-Ib
rn-kq
86.80 in-Ib
crn-kq 0.0723 ft-Ib
em-kg 0.8680
in-Ib
kg 2.205 Ib
g 0.03527
02
km/lit 2.352 mpg
km/hr 0.6214 mph
km 0.6214 mi
m 3.281
ft
m 1.094 yd
cm
0.3937 in
mm 0.03937 in
cc (cm
3
)
0.03382 oz (U.S. liq)
cc (crn") 0.06102 cu.in
lit
(l
iter) 2.1134 pt (U.S. liq)
lit (liter)
1.057 qt (U.S. liq)
lit (l iter) 0.2642 gal (U.S. liq)
kg/mm 56.007 Ib/in
kq/crrr' 14.2234 psi (lb/in
2
)
Centigrade
(0
C)
9/5 (C)
+
32 Fahrenheit lO F)
-34-
tighten multi-fastener assemblies in a criss-
cross fashion, in progressive stages, until full
torque is reached. Unless otherwise specified,
torque specifications call for clean, dry
threads. Components should be at room
temperature.
INCH TO METRIC SYSTEM
Known Multipl ier
lesult
ft-Ib
0.13826 m-kq
ln-Ib 0.01152 m-kq
ft-Ib
13.831 em-kg
inIb 1.1521 em-kg
Ib
0.4535 kg
oz
28.352
9
mpg
0.4252 km/lit
mph 1.609
krn/hr
mi
1.609 km
ft 0.3048 m
yd
0.9141 m
in
2.54 em
in
25.4 mm
oz (U.S.
liq) 29.57
ee (em
3
)
cu.in "16.387
ce (crn")
pt (U.S. liq)
0.4732
lit (liter)
qt (U.S. liq]
0.9461
lit (liter)
gal (U.S. liq) 3.785 lit (liter)
Ib/in
0.017855 kg/mm
psi (lb/in? )
0.07031 kg/cm
2
Fahrenheit
(0
F) 5/9 (F) - 32
Centigrade (C)