Honda CB250N Shop Manual page 11

General Information
i—
Lubrication
Item
Unit:
mm
(in)
Standard Service
Limit
Engine
oil
capacity
at draining'
at
disassembly
at
oil
filter
change
Recommended
engine
oil
Oil pressure at
oil
pressure
switch
Oil
pump
rotor
tip
clearance
©
body clearance
@
end
clearance
(D
®
©
-+[
F
1.5
I
(1.6
US
qt,
1.8
I
(1.9
US
qt,
1.3
Imp
qt)
1
.6
Imp
qt)
Use Honda
4-stroke
Oil
or equivalent
API Service
Classification: SE,
SF
or
SG
Viscosity:
SAE
1
OW-40
Other
viscosities
shown
in
the chart
may
be used
when
the
average temperature
in
your
riding
area
is
within the indicated
range.
0.15
(0.006)
0.15-0.18
(0.006-0,007)
0.03-0.1
1
(0.001
-0.004)
0.20 (0.008)
0.25
(0.010)
0.14
(0.006)'
-
Fuel
System
1
—
Carburetor
identification
number
Main
jet
(High
altitude)
(2, 3)
11,4)
(Front)
(Rear)
Slow
jet
Jet needle
clip position
Pilot
screw
initial
opening
Pilot
screw
high
altitude
adjustment
Pilot
screw
final
opening
Air
screw
initial
opening
Air
screw
high altitude adjustment
Float
level
Carburetor
vacuum
difference
Base
carburetor
(For
carburetor synchronization)
Idle
speed
Throttle
grip free play
Accelerator
pump
clearance
Secondary
air
supply
system
Air injection control valve
vacuum
pressure
VE37A
#112
#35
1-7/8
1/4 turns out
18.5 (0.73)
1,500 +
100
min- 1
(rprnl-
2-6
(1/8-1/4)
1
-6