Description
Overview:
The Carburettor C1Q‐S51C is a genuine Stihl replacement that restores correct fuel and air metering on selected 2‐stroke machines, including the FS 120 and FS 120 R brushcutters. Built around a robust die‐cast aluminium body with diaphragm operation and a primer bulb, it is designed for reliable running in outdoor conditions. This unit regulates mixture for easier starting, steady idle and clean acceleration under load. Supplied to meet OEM specification (OEM No. 4134 120 0651), it is a direct fit for the listed models and is suitable for everyday use by landscapers, grounds teams and homeowners who need dependable performance and straightforward servicing.
Key Features:
- Genuine Stihl part for assured fit and compatibility (OEM 4134 120 0651)
- Durable die‐cast aluminium construction with diaphragm metering for consistent fueling
- Precise mixture control for easier cold starts, stable idle and responsive throttle
- Designed for the listed engines to maintain performance and fuel efficiency
- Direct replacement with standard mounting points and fuel line connections
- Robust build for frequent use in dusty, wet and variable site conditions
- Service‐friendly design with accessible idle and mixture adjustment points
- Helps cure hard starting, stalling at idle and hesitation on acceleration
- Suitable for professional and DIY maintenance schedules
Typical Applications:
Replacement carburettor for Stihl brushcutters, clearing saws and the BT 120 C earth auger. Used to resolve poor starting, erratic idle, flooding or lack of power caused by worn diaphragms or contaminated internal passages. Suitable for grass cutting, brush clearing, forestry maintenance, landscaping, site clearance and drilling post holes.
Also known as:
Carb, carburetor, fuel metering unit, air‐fuel mixer, mixture controller, C1Q‐S51C assembly, C1Q S51 C, carb body, fuel system mixer.
Fits Models:
BT 120 C, FR 350, FR 450, FR 480, FR 480 C, FS 120, FS 120 R, FS 200, FS 200 R, FS 250, FS 250 R, FS 300, FS 350, FS 380
Alternate Part Numbers:
4134-120-0651, 41341200651
Product Specifications
| L&S Part No. | 4134 120 0651 |
|---|---|
| Part Type | Genuine Part |
| Manufacturer | Stihl |
| OEM No. | 41341200651 |
| Unit of Sale | 1 |
| Applications | BT 120 C, BT120C, FR 350, FR 450, FR 480, FR 480 C, FR350, FR450, FR480, FR480C, FS 120, FS 120 R, FS 200, FS 200 R, FS 250, FS 250 R, FS 300, FS 350, FS 380, FS120, FS120R, FS200, FS200R, FS250, FS250R, FS300, FS350, FS380 |
| Machine Type | Brushcutters |
| Fits Models | FS120, FS200, FS250 | FS300, FS350, FS380 | FR350, FR450, FR480, FR480C | BT 120 C |
