Description
Over years of “Life on the Road,” carburettor floats can become heavy, cracked, or misaligned. When a float fails, your Hyosung will either flood the engine (causing hard hot-starts) or starve for fuel at high RPM. Replacing a damaged or missing float is a critical step in any professional carburettor overhaul to ensure the air-fuel mixture stays exactly where the factory intended.
💎 Precision Fuel Management
Restoring your carb with the correct float height is the secret to a smooth idle and “no-bog” acceleration.
| Stop Flooding Ensures the fuel inlet closes tightly when the bowl is full. |
Reliable Starts Maintains the correct “ready-to-go” fuel level. |
| OEM Specification Direct replacement for Hyosung Part# 13379HG5100. |
Twin-Engine Ready Order two for a full dual-carb service. |
📜 Confirmed Fitment Guide
📅 YEARS: All Carburettor-equipped models (GV125 up to 2017).
⚠️ MISSING VALVE? Need the gold fuel valve that sits under this float? Click here to add it to your order.
If you are opening the carbs, we strongly suggest a Full Carb Rebuild Kit to replace old gaskets and jets simultaneously. Browse the Tuning Shop.
🔧 Install Tips
- Float Height: For most Hyosung V-Twins, aim for a float height of approximately 7mm. Measure from the gasket surface (without the gasket) to the top of the float.
- Gentle Adjustment: If the height is off, carefully bend the small metal tab that contacts the needle valve. Do not put pressure on the rubber tip of the valve itself!
- Pin Check: Ensure your pivot pin is clean and straight so the float moves freely without sticking.
- Tutorials: Get more help at the HyoRiders Tutorial Paddock.
📧 FITMENT QUESTIONS? Email us with your bike details. For community advice on carb jetting, visit the HyoRiders Forums.














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