Main
nozzle
Pilot
jet
NOTE:~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1.
Banjo
bolt
holding
main
jet
can be removed
without
any
disassembly.
2. Carefully set
body
aside and
inspect
each
independent
float
within
the
float
bowl cavity.
Note
their
installation
position. The
float
arm pin
must
be
at
the
bottom
of
the
float
bowl
and
pointed in.
toward
the
center.
3.
Wash
the
carburetor
in
petroleum
base solvent.
Wash
all associated parts.
4.
It
is rarely necessary
to
use special
carburetor
cleaning solutions,
if
deposits
warrant
this
procedure.
remove
the
Starter
Jet
Assembly
to
avoid
damaging
the
neoprene valve seat.
5.
Using
high
pressure air,
blow
out
all passages and jet's.
6.
Never
direct
high pressure
air
into
carburetor
with
float
bowl
installed. Damage
to
floats
may
occur.
7. Inspect
the
needle and seat
for
signs
of
excessive
wear
or
attached
foreign particles. Replace
as required.
Always
replace
inlet
needle and
inlet
valve seat as an assembly.
8. Inspect
pilot
air
screw
for
signs
of
excessive
wear
or
attached
foreign particles. Replace as
required.
Troubleshooting and repair
Carburetor Specifications
Model
Part
Name
Abbrev.
LB50
ll
AC
LBBOJIAC
Manufacturer - Model - M ikuni VM 14SC
Mikuni
VM
16/1
I.D.
Number
-
2T5-00
1
F5-01
Venturi Size -
14mm
16mm
Main Jet M.J.
#95
<--
Needle
Jet
N.J.
E-4
E-8
Jet
Needle/Clip Position J.N.
3G9/3
+-
Cut
Away
C.A.
2.5
+-
Pilot
Jet
P.J.
#17.5
#15
Air
Jet
A.J. Drill 2.5q, +-
Starter
Jet
S.J.
#20
#25
Air
Screw
(Turns Out)
A.S. 1
1-3/4
Idle Speed
-
1.350±
100rpm
+-
Float Level
F.L.
22.0
+ 2.5 mm
+-
-
91
-
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