Castelgarden Carburettor - 123054025/1
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Product Information
Full details
This genuine Castelgarden carburettor (part number 123054025/1) is an essential replacement component for owners of Mountfield, Stiga, and Alpina landscaping machinery looking to restore optimal engine performance. It is specifically engineered to ensure precise fuel-air mixing for various brushcutters and trimmers, making it ideal for DIY maintenance; however, users must verify their specific machine model number, as compatibility varies widely across the product range.
All features
| Model Part Number | 123054025/1 |
|---|---|
| Brand | Castelgarden |
Extended Product Information
FAQs
Is this a universal carburettor?
No, it is specifically designed for the models listed. Check your machine's manual or product label to ensure compatibility.
Does this part include new gaskets?
While the carburettor itself is genuine, always check the package contents against your specific service manual to see if additional gaskets are required for your repair.
Can I install this myself if I have no experience?
It is recommended that you have basic mechanical experience. If you are uncomfortable working with fuel systems, consult a professional technician.
How do I confirm this fits my machine?
Compare your current carburettor part number or your machine's model and serial number against the list of compatible Stiga, Alpina, and Mountfield models provided in the product description.
What is the most common cause of carburettor failure?
The most common cause is leaving stale fuel in the machine for an extended period, which causes gum and varnish to form inside the small passages.
Troubleshooting
Engine starts but stalls immediately.
Check fuel lines for blockages or air leaks; ensure the fuel cap vent is not clogged.
Engine runs at an inconsistent speed (surging).
Verify that all gasket connections between the engine block and the carburettor are airtight.
Fuel is leaking from the unit.
Inspect the fuel supply hoses and ensure the carburettor bowl screw is tightened correctly.
Pros and Cons
Pros
- Ensures compatibility and performance match with original factory parts
- Helps restore engine power and idle stability
- Genuine OEM quality ensures durability compared to generic alternatives
- Wide cross-brand compatibility across Mountfield, Stiga, and Alpina models
Cons
- Requires mechanical knowledge to install correctly
- Specific to certain models; not a universal fit
- Requires careful cleaning of surrounding fuel lines during installation
Setup, Compatibility & Care
Before installation, ensure the engine is completely cool and the fuel tank is drained or fuel lines are clamped. Because this part fits multiple models—such as the Alpina B 28 or the Stiga SB 33—it is vital to check your manual for the exact carburettor configuration.
Care Instructions:
- Fuel Quality: Always use fresh fuel. Old fuel with high ethanol content can degrade internal seals and clog the carburettor jets.
- Air Filter: A clean air filter is mandatory. Operating with a dirty filter causes the carburettor to run "rich" and increases the risk of premature fouling.
- Storage: During off-season storage, run the engine until the fuel in the carburettor is completely consumed to prevent varnish buildup.