Stihl 1128 · Section M · 12 of 17 · 43 parts
Carburetor C3M-S12B automatic choke
Fits 044.
Parts (43)
| Pos | Part number | Description | Qty |
|---|---|---|---|
| 1 | 4116 121 5100 | Inlet needle | 1 |
| 2 | 1125 121 5000 | Inlet control lever | 1 |
| 3 | 1128 122 3000 | Spring | 1 |
| 4 | 1120 121 9200 | Spindle | 1 |
| 5 | 1120 122 6600 | Collar screw | 1 |
| 6 | 1125 121 0700 | Cup plug | 1 |
| 7 | 1125 129 0901 | Gasket | 1 |
| 8 | 1125 121 4700 | Metering diaphragm | 1 |
| 9 | 1128 121 5400 | Valve jet | 1 |
| 10 | 1128 121 0800 | End cover | 1 |
| 11 | 1128 120 7102 | Throttle shaft with lever | 1 |
| 12 | 1120 122 6601 | Collar screw | 4 |
| 13 | 1125 122 4200 | Clamp | 1 |
| 14 | 1128 121 4802 | Pump diaphragm | 1 |
| 15 | 1125 129 0900 | Gasket | 1 |
| 16 | 1128 120 0800 | End cover | 1 |
| 17 | 1120 122 7800 | Oval head screw | 1 |
| 18 | 1128 122 3204 | Torsion spring | 1 |
| 19 | 1123 121 7800 | Strainer | 1 |
| 20 | 1125 122 9001 | E-clip | 1 |
| 21 | 1128 121 3300 | Throttle shutter | 1 |
| 23 | 1128 122 3203 | Torsion spring | 1 |
| 24 | not sold separately | Choke lever not available as a separate item | 1 |
| 25 | 1128 120 7201 | Choke shaft with lever | 1 |
| 26 | 1128 122 3202 | Torsion spring | 1 |
| 27 | 1125 122 9002 | E-clip | 1 |
| 28 | 1128 121 2901 | Choke shutter | 1 |
| 29 | 1125 122 7403 | Round head screw | 2 |
| 30 | 1128 122 6200 | Idle speed adjustment screw | 1 |
| 31 | 1120 122 3005 | Spring | 2 |
| 32 | 1125 122 6700 | High speed adjustment screw | 1 |
| 33 | 1128 122 6800 | Low speed adjustment screw | 1 |
| 34 | 1128 122 3205 | Torsion spring | 1 |
| 35 | 1128 120 9500 | Set of carburetor levers | 1 |
| 36 | 1124 121 9100 | Bushing | 1 |
| 50 | 1125 121 0803 | End cover | 1 |
| 51 | 1128 121 5401 | Valve jet | 1 |
| 52 | 1125 122 6701 | High speed adjustment screw | 1 |
| 53 | 1128 122 6802 | Low speed adjustment screw | 1 |
| 54 | 1128 120 7104 | Throttle shaft with lever | 1 |
| Not numbered on the diagram — assemblies, kits and options | |||
| — | 1128 120 0615 | Carburetor C3M-S12B | 1 |
| — | 1128 007 1065 | Set of carburetor parts | 1 |
| — | 1128 120 0603 | Carburetor C3M-S12A no longer available from factory | 1 |
2012 service parts catalogue. Parts are not interchangeable across engine series — check yours before ordering.
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