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Section 02
ENGINE
Sub-section 11
(C~~BURETOR
& FUEL PUMP)
1
Cover
2
.
Spring
!throttle
valve!
3
.
Needle
retainer plate
4
.
Needle
5.
Orclip
8
.
Packing
!on
some
models!
7.
Throrrle
slide
8
.
Needle jet
9.
Gasket
10
..
Pilot
jet
11
.
Roar arm pin
12.
Float arm
13. Float
14.
0 -ring
15.
Plug screw
16.
Idle
air
screw
17.
Spring
18.
Spr•ng lthrorrle stop screw!
19.
Throttle stop screw
20.
Baffle plate
21
.
Washer
REMOVAL
Remove air
silencer
box, fuel inlet line and primer
line.
Unscrew
carburetor
cover then pull
out
throttle slide ass'y
from carburetor
.
+
WARNING: Exercise care when handling throttle
slide. Scratches incurred may cause throttle slide
to stick open in operation
.
Di
sconnect
throttle cable ass'y from
carburetor,
hand-
lebar and as necessary, oil injection pump.
Untighten rubber flange
clamp
then remove carburetor
from engine
.
CLEANING
&
INSPECTION
The entire carburetor
should
be cleaned with a general
·solvent
and dried with compressed air before disassem-
bly
.
Carburetor body
and Jets should
be cleaned
in
a carbu-
retor cleaner following
manufacturer
'
s instructions.
+
WARNING: Solvent with a low flash point such as
gasoline, naphtha, benzol, etc., should not be used
as they are flammable and explosive.
Check inlet needle
tip
condition. If worn, the inlet nee-
dl
e
and seat
must be replaced as
a matched set
.
Check
throt
tle
slide
for
wear. Replace as necessary
'W'
CAUTION: Heavy duty carburetor cleaner may
T
be harmful to the float material and to the rubber
parts,
O·ring, etc. Therefore, it is recommended tore-
move those parts prior to cleaning.
02-11-4
22. Needle valve
23.
Baffle ring
24.
Main
jet
25.
Tube
retamer plate
26
Screw
and
lock
wash
er
27.
Vent tube
28.
Cap
29.
Spring
plate
30.
Choke lever
31 .. Starting piston
32.
Spring
33.
Nipple
34.
Plunger cap
35.
Rubber cap
38.
Holder guide
37.
Washer
38.
Spring
39.
Plunger
40.
Throttle
cable
retainer
41
.
Screw
42. Screw M6
DISASSEMBLY & ASSEMBLY
·
o
NOTE: To ease the Mikuni carburetor
disassem-
.
bly and assembly procedures it
is
recommended
to use a special tool kit available under P/N 404 1120 00
A000001087
4,5, Needle, circlip
The position of the needle in the throttle slide is adjusta-
ble by means of
an "E"
clip inserted into one of 5
groo-
ves located on the upper part of the needle. Position 1
is the leanest, 5 the richest
.
0
NOTE:
The
last
dig
it of the needle
indentification
number gives the
position of
the
clip
from the top
of
the
needle.
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