Stihl 4180 · Section K · 10 of 20 · 44 parts
Carburetor C1Q-S81 (41.2003)
Fits FS 100, FS 100 R, FS 100 RX, FS 110, FS 110 R, FS 110 X, FS 110 RX.
Parts (44)
| Pos | Part number | Description | Qty |
|---|---|---|---|
| 1 | 4180 120 7100 | Throttle shaft with lever | 1 |
| 2 | 4180 122 3000 | Spring | 1 |
| 3 | 4128 121 8901 | Pin | 1 |
| 4 | 4137 121 8600 | Washer | 1 |
| 5 | 1120 122 9000 | E-clip | 1 |
| 6 | 4180 121 3300 | Throttle shutter | 1 |
| 7 | 1125 122 7403 | Round head screw | 1 |
| 8 | 1125 122 9001 | E-clip | 1 |
| 9 | 4180 121 4800 | Pump diaphragm | 1 |
| 10 | 4180 129 0901 | Gasket | 1 |
| 11 | 4180 120 2600 | Pump cover | 1 |
| 12 | 4180 122 7101 | Screw | 2 |
| 13 | 4116 121 5100 | Inlet needle | 1 |
| 14 | 1123 122 3001 | Spring | 1 |
| 15 | 1125 121 5000 | Inlet control lever | 1 |
| 16 | 1120 121 9200 | Spindle | 1 |
| 17 | 1120 122 6600 | Collar screw | 1 |
| 18 | 4180 129 0902 | Gasket | 1 |
| 19 | 4314 121 4700 | Metering diaphragm | 1 |
| 20 | 4180 120 2206 | Flange | 1 |
| 21 | 4226 122 7100 | Screw | 4 |
| 22 | 4229 122 6701 | High speed adjustment screw | 1 |
| 23 | 4180 122 6800 | Low speed adjustment screw | 1 |
| 24 | 1120 121 7800 | Strainer | 2 |
| 25 | 4140 121 0800 | End cover | 1 |
| 26 | 4226 121 2700 | Cap | 1 |
| 27 | 4180 122 6200 | Idle speed adjustment screw | 1 |
| 28 | 4128 121 2900 | Choke shutter | 1 |
| 29 | 1125 122 7403 | Round head screw | 1 |
| 30 | 4119 122 4200 | Ball | 1 |
| 32 | 4229 121 2701 | Cap | 2 |
| 33 | 4180 121 0801 | End cover | 1 |
| 34 | 4180 121 3000 | Choke shaft | 1 |
| 35 | 4180 121 4801 | Pump diaphragm | 1 |
| 36 | 4180 129 0903 | Gasket | 1 |
| 37 | 4180 121 8600 | Washer | 1 |
| 38 | 4180 122 3001 | Spring | 1 |
| 39 | 4180 121 5800 | Pump piston | 1 |
| 40 | 1132 122 3600 | Sealing ring | 1 |
| 41 | 4180 122 3002 | Spring | 1 |
| 42 | 1120 121 7801 | Strainer | 1 |
| 43 | 4137 121 5603 | Fixed jet 0.34 | 1 |
| Not numbered on the diagram — assemblies, kits and options | |||
| — | 4180 120 0602 | Carburetor C1Q-S81 no longer available from factory | 1 |
| — | 4180 007 1060 | 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 FS 100, FS 100 R, FS 100 RX, FS 110, FS 110 R, FS 110 X, FS 110 RX? Report a correction →