WARNING. Move one "flat" of the nut round at
a
time and remember to apply
slight downward pressure on the
iet
lever to ensure that the jet fcllows the adjusting
nut.
as
the
jet
lsuer spring (Pt. No.
4872;:)
is
not strong enough to do this itself
(as
in
car
practice),
its
sole purpose beir.g to retain the jet against vibration in the
position
se:
by the rider.
Three "flats" in eirher direction should be sufficient to
identify progress; excess movement would indicate an air leak in rhi induction
system or an ignition fault.
~ ~
INDEX
TO
FIG.
63.
S.U. CARBURETTER (COMPONENT 'PARTS)
A
correct idling mixture gives an even beat with
a
colourless exhaust-too rich
a
mixture gives a
trace
of black in the exhaust with a rhythmical or regurar misfire-
too +ygak a mixture gives
a
splashy irregular type of misfire with
a
marked tendency
to stop.
9
r7
Description.
2 Adaptor, throttle barrel.
3
Screw, adaptor to body.
4
Gasket, adaptor to body.
5
Abutment, throttle cable.
6
Screw.
.
7 Screw, plug
2
B.A.
8
Washer.
9 Chamber, suction complete.
10
Spring. piston.
11
Washer, thrust.
12
Screw, needle.
13
Needle, jet.
14
Screw.
15
Washer, spring.
16
Washer, oil cap.
17
Oil
cap, octagonal.
18 Jet.
19 Screw, jet.
20 Bearing, jet top half.
21
Bearing, jet bottom half.
22 Washer. copper.
23 Washer. copper.
24
Ring, sealing (Brass).
25
Ring. sealing (Cork).
26
Washer, gland (Brass).
27 Wasber, gland (Cork).
28
Spring.
29
Nut,
adjusting.
30
Spring.
31
Lever, jet.
32
Link, jet.
Index
No.
Description,
-
33
Pivot pin, long.
34
Pivot pin, short.
35
Bolt.
36
Washer, fibre.
37
Washer, spring.
38
Washer.
39
Nut.
40
Split pin.
.41
Spring, return.
42 Chamber, float.
43 Lid, float chamber.
44
Float.
45
'Needle and seat.
46
Lever, hinged.
47
Pin, hinge.
48
Washer, fibre.
49
Washers, 2-fibre, 1-brass.
50
Washer, float chamber lid.
St
Bolt, holding.
52
Nut, float chamber lid.
53
Cap, brass.
54
Throttle spindle.
56
Disc, throttle.
57
Screw.
59
Lever, throttle.
60
Bolt.
61
Nut.
62 Washer.
63
Screw, adjusting.
64
Spring, adjusting screw lock.
65
Spring, lever return.
To Next Page
Loading...
