O.S. Engines GT55 - Manual (Page 16)

30
Type of screw N...Round Head Screw
CARBURETOR EXPLODED VIEW
10
1
N4-40x5
2
3
4
5
6
7
8
9
9-1
11 12
13
4-4x40
12
4-4x40
12
4-4x40
14
15
16 17 18
19
20
19-1
N4-40x5
21
22
23
24
25
24-1
24-2
24-3
24-4
24-5 24-6
26
27
28
31
The specifications are subject to alteration for improvement without notice.
CARBURETOR PARTS LIST
1
2
3
4
5
6
7
8
9
9-1
10
11
12
13
14
15
16
17
18
19
19-1
29781340
29781330
29781460
29781450
29781430
29781440
29781410
29781420
29781360
29781350
29781310
29781320
29781570
29781550
29781510
29781560
29781520
29781530
29781540
29781370
29781350
Description Code No. No.
Spring-Choke Friction
Ball
Plug-Friction
Screw-Idle Speed
Needle-High Speed
Spring-Needle (H) ADJ.
Needle-Idle
Spring-Needle ADJ.
Choke Arm Assy
N4-40x5 Retaining Screw
Shaft-Choke
Valve-Choke
4-40x4 Retaining Screw
Lever-Outer
Shaft-Throttle
Ring-Retaining
Valve-Throttle
Spring-Throttle Return
Link-Throttle
Throttle Arm Assy
N4-40x5 Retaining Screw 20
21
22
23
24
24-1
24-2
24-3
24-4
24-5
24-6
25
26
27
28
29781020
29781030
29781040
29781050
29781270
29781060
29781210
29781220
29781230
29781240
29781250
29781120
29781130
29781140
29781070
Description Code No. No.
Gasket Passage
Plate-Passage
Gasket-Pump
Diaphragm-Pump
Body Assembly Pump
Screen-Inlet
Spring-Metering
Valve Inlet Needle
Pin-Metering Lever
Lever-Metering
Screw-Metering
Gasket-Metering Diaphragm
Diaphragm Assembly-Metering
Cover Assembly-Metering (W/Nipple)
Carb. Assemble Screw