Stihl 1143 · Section L · 11 of 14 · 26 parts
Carburetor WTF-2A, WTF-4A
Fits MS 231, MS 231 C, MS 251, MS 251 C.
Parts (26)
| Pos | Part number | Description | Qty |
|---|---|---|---|
| 1 | 4116 121 5100 | Inlet needle | 1 |
| 2 | 1121 121 5000 | Inlet control lever | 1 |
| 3 | 4116 122 3000 | Spring | 1 |
| 4 | 1113 121 9200 | Spindle | 1 |
| 5 | 1121 122 7103 | Round head screw | 1 |
| 6 | 1143 129 0900 | Gasket | 1 |
| 7 | 1143 121 4700 | Metering diaphragm | 1 |
| 8 | 1143 126 0700 | Metering cover | 1 |
| 9 | 1121 122 7101 | Screw | 4 |
| 10 | 1121 121 4801 | Pump diaphragm | 1 |
| 11 | 1120 129 0905 | Gasket | 1 |
| 12 | 1143 120 2600 | Pump cover | 1 |
| 13 | 1114 122 7100 | Screw | 1 |
| 14 | 1143 122 6800 | Low speed adjustment screw | 1 |
| 15 | 1143 122 6700 | High speed adjustment screw | 1 |
| 16 | 1143 121 2702 | Cap | 1 |
| 17 | 1143 122 6201 | Idle speed adjustment screw | 1 |
| 18 | 1143 121 2703 | Cap | 1 |
| 19 | 1143 121 3501 | Throttle lever | 1 |
| 20 | 1123 122 9000 | E-clip | 1 |
| 21 | 1114 121 7800 | Strainer | 1 |
| 22 | 1143 121 9401 | Ring | 1 |
| 23 | 1143 126 0702 | Metering cover | 1 |
| Not numbered on the diagram — assemblies, kits and options | |||
| — | 1143 120 0601 | Carburetor WTF-2A | 1 |
| — | 1143 120 0631 | Carburetor WTF-4A | 1 |
| — | 1143 007 1700 | Set of carburetor parts | 1 |
2012 service parts catalogue. Parts are not interchangeable across engine series — check yours before ordering.
Wrong number or missing part for the MS 231, MS 231 C, MS 251, MS 251 C? Report a correction →