Description
Let’s be honest — the stock float bowl bolts on many Hyosung carburettors are a weak point. They often seize up due to rust, corrosion, or just general wear and tear. This makes routine carburettor servicing frustrating and sometimes damaging, especially if you’re forced to use a worn screwdriver or risk stripping the bolt heads.
This stainless steel bolt upgrade kit is the perfect solution. These bolts are made from high-quality stainless steel that resists corrosion and rust — ensuring you never have to worry about seized bolts again. Perfectly sized to fit all 125cc and 250cc Hyosung carburettor float bowls, they give your bike’s fuel system a professional-grade finish and durability.
| 📦 What’s Included? | 🛠 Fitting Info |
| 8x Stainless steel float bowl bolts (fits 2 bowls on all carby 125cc & 250cc Hyosungs) | Simple swap out. Remove old bolts carefully, then replace with these new stainless bolts — no modifications needed. Just torque to factory specs for a proper seal. |
Reference Part Number: 13350HG5100
Why upgrade to Stainless Steel Float Bowl Bolts?
Stock carburettor bolts are often made from cheaper steel prone to rust and corrosion, especially if you ride in wet or coastal conditions. Rusty bolts seize in place, causing headaches when servicing, and can even damage the carburettor casing threads if forced or stripped.
These stainless steel bolts resist rust and corrosion completely, making carburettor maintenance smoother and extending the life of your carb body. They look better too, giving a subtle but sharp upgrade to your bike’s engine bay aesthetics.
Because these bolts are precision-made, they won’t round off easily, saving you money on repairs and replacements. They fit perfectly without needing any extra modifications or adapters.
Key Benefits:
- ✔ Superior corrosion resistance prevents seized bolts
- ✔ Exact fit for Hyosung 125cc & 250cc carburettors
- ✔ Easy installation — simple swap out of stock bolts
- ✔ Cleaner, more professional finish in your engine bay
- ✔ Protects carburettor threads by reducing risk of bolt damage
🔧 Installation Tips:
- Before removal, clean around the bolts to avoid dirt falling into the carb bowl.
- Use a genuine JiS (+) screwdriver sized correctly to avoid rounding the bolt heads.
- Loosen bolts gently, applying penetrating oil if bolts seem stuck.
- Replace all bolts at once to ensure consistent sealing and appearance.
- When installing new stainless bolts, apply a small amount of thread locker or anti-seize compound to help future removal.
- Torque bolts to the manufacturer’s specification to avoid overtightening and damage.
- Double-check for leaks after installation by running the engine and observing the carburettor base.
- Routine inspection of bolts during carb maintenance helps ensure ongoing reliability.


















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