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FUEL SYSTEM
NOTE
• The vacuum chamber
and flnat
chamber
can
be serviced with the carburetors assembled.
• The
pilot screws are factory
pre-set
and should
not
be removed unless the carburetors are
overhauled. Turn
each pilot
screw
in
and carefully
count
the number of
turns
before it
seats
lightly. Make a
note
of this
to
use as
a
reference
when
reinstalling the pilot screws.
If new pilot screws are installed,
turn
pilot screws
out
to
the initial opening
(page
1-6).
»
REQUISITE
SERVICE
• Fuel
tank
removal/installation (page
2-4)
•
Air cleaner case removal/installation
(page
6-3)
•
Carburetor removal/installation
(page
6-4)
• Carburetor
separation (page
6-6)/combination
(page
6-10)
•
Carburetor
synchronization (page
3-8)
»
PROCEDURE
Q'ty
REMARKS
DISASSEMBLY ORDER
Vacuum
Chamber
Vacuum chamber
cover
screws
■
Assembly is in
the reverse order
of
disassembly.
»
(1)
4
At installation,
first tighten the
two
screws on the dowel
pin side.
(2)
Vacuum chamber
cover
Spring
Diaphragm/vacuum
piston
Jet needle holder
1
13)
1
(4)
1
(5)
Turn the holder 90° counterclockwise while pushing it
in
and remove it.
1
(6)
Spring
Spring
holder
Jet needle
Washer
1
(7)
At
installation, align holder claws with piston grooves.
1
(8)
1
(9)
1
Float
Chamber
Float chamber
cover
screws
(10)
4
At installation, first tighten the
two
screws
on the
dowel
pin side.
NOTE:
•
For removal of the No. 1
(or
No.
3)
carburetor float
pin
with the carburetors assembled, first
remove
the No. 2
(or
No.
4)
carburetor float chamber.
For float level inspection, refer
to
the section 8 of the
Common Service Manual.
Float
pin
(11)
1
(12)
Float
1
(13)
Float valve
Valve
seat
Sealing
washer
Fuel filer
Main jet
Needle
jet
Slow
jet
1
1
(14)
(15)
1
(16)
1
(17)
1
(18)
1
(19)
1
Bystarter Valve
Valve
nut
Spring
Bystarter
valve
(20)
1
I
(21)
1
(22)
1
Pilot Screw
Pilot
screw
(23)
Canada
model: No. 1 and No. 4 carburetor pilot
screws
are shorter
than
those for No. 2 and No. 3.
1
Spring
Washer
O-ring
(24)
1
»
(25)
1
(2G)
1
»
a
o
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