Carburettor for Stihl 120 200 250 300 350 GEKO G81126
Key information
Availability:In stock (ready to ship)
Shipping time:immediately
Shipping cost:From 3.29 Euro
catalog number:G81126
Availability:
EAN code:5901477128691
Product condition:New, originally packaged
Guarantee:24 months of consumer protection
Weight:0,11 kg
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Replacement Carburettor for Stihl 120/200/250/300/350 Chainsaws - GEKO G81126
A replacement carburettor designed for the popular Stihl 120–350 series petrol chainsaws. A fuel system component responsible for creating the fuel-air mixture in the correct proportions.
Carburettor Features
Compatibility with the Stihl Series
A carburettor designed to work with Stihl 120, 200, 250, 300 and 350 models. The 30 mm mounting hole spacing ensures a direct fit to the cylinder mount on these models. Before purchase, verify the hole spacing on your particular chainsaw model.
Mixture Adjustment Function
A diaphragm carburettor with adjustable L (idle) and H (full throttle) screws. The correct mixture setting affects engine power, fuel consumption and exhaust emissions. It requires tuning after installation in accordance with the chainsaw manufacturer's instructions.
Compact Dimensions
Its 78 × 57 × 29 mm dimensions allow installation in the original location without any need to modify the housing. The 29 mm depth accounts for the standard clearance from the cylinder on Stihl models in this series.
Alternative to the Original Component
This product is an alternative to the original Stihl carburettor. It retains the key fitting and functional parameters. It should be used in accordance with the chainsaw manufacturer's recommendations for fuel mixture composition and two-stroke oil.
Technical Specification
| Model | GEKO G81126 |
| Compatibility | Stihl 120, 200, 250, 300, 350 |
| Height | 57 mm |
| Width | 78 mm |
| Depth | 29 mm |
| Mounting hole spacing | 30 mm |
| Carburettor type | Diaphragm |
| Application | Two-stroke petrol chainsaws |
Installation and Start-up
Compatibility Check
Before purchase, measure the mounting hole spacing on your chainsaw. The 30 mm spacing is measured between the centres of the holes for the bolts securing the carburettor to the cylinder. Also check the diameter of the inlet stub that fits the air filter.
Fitting the carburettor requires disconnecting the fuel system and removing the old component. After installing the new carburettor, you should:
- Connect the fuel lines in accordance with the markings (inlet and return)
- Fit the throttle cable and choke lever
- Pre-set the L and H adjustment screws (1.5 turns out from the closed position)
- Start the engine and carry out the adjustment with the engine warm
- Check idle stability and throttle response
- Verify the maximum speed under full load
Fuel Mixture Adjustment
The L screw adjusts the mixture at idle - too lean causes stalling, too rich causes smoking and unstable running. The H screw controls full throttle - an incorrect setting can lead to overheating or loss of power. The adjustment is best carried out using a tachometer, in accordance with the parameters for the particular chainsaw model.
Diagnostics and Maintenance
The carburettor requires periodic inspection and cleaning. Symptoms indicating that attention is required:
- Difficulty starting the engine when cold or warm
- Unstable running at idle
- Loss of power under full load
- Increased fuel consumption or smoking
- Spark plug flooding
The causes of these problems may include contamination of the fuel passages, a worn diaphragm or a damaged gasket. Regular cleaning of the air filter and the use of clean fuel extend the life of the carburettor.
Commercial information
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Client: AN...RZ,date of purchase 16-07-2026 14:10
