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I
34
111.
ENGINE
12.
CARBURETOR
Fig.
3
-
67
(
I
) Rubber cap
( 2)
Cable adjuster
(3)
Cap
(4) Carburetor top
( 5) Top gasket
(6)
Throttle valve
spring
(7) Needle clip plati
(8)
Clip
(9)
Jet needle
(10)
Throllle Vi:11ve
( 11)
Carburetor body
(12) Air screw
(13) Air screw spring
(14)
Throttle stop screw
(15) Stop screw spring
(16)
Needle jet
( 17) Needle jet
holder
(18) Main jet
(19)
Slow jet
(20)
Valve seat
(21)
Float valve
(22) Float
(23)
Float arm pin
(24)
Float chamber
(25)
Drain bolt
(26) Overflow
tube
(27) Choke rod
Disassembly
I.
Remove Lhe carburetor assembly from the machine.
2.
Separate the float chamber body from the carburetor.
3. Remo),e the slow a11d main jet~
4. Pry out
the
float arm pin; remove
the
float.
5.
Remove the
float
valve seat
Inspection
I. Check the thronlc valve for damage or any other defects
which mjght interfere
wich
proper carburetor
operatiOrL
2 Blow the main a11d slow jets to check them for clogging
3. Check tlie jet needle for wear.
4. Check the valve plate and valve for correct seating
5.
Check Lhe float
level in
the
float
chamber.
Hold the carburetor with its main bore
in
a vertical
position, so
the float
arm tang will
just
close the float
valve, wiU,out compressing
the
spring loaded plunger in
the end of
the
valve.
Measure
float height with a float level gauge.
Float
height (distance between the carburetor body and the
opposite edge of the tloat) should
be
21.0mm (0.827
,in.) when the float valve just closes.
If
adjustment is needed, carefully bend the float arm
tang toward or away from the
float
valve
until the
specified float height is obtained.
.
Replace any damage or leaking float.
Fig.
3-68
(I)
Slow jct
(2)
Main jet
(3)
Float
(4)
Float arm
(5)
l'loat arm pm
(2)
(1)
/
/
(3)
/
Fig.
3-
69
(I)
Float
( 2)
l'loat ann
(3)
Float
level
gauge
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