Description
Over years of constant petrol exposure and engine heat, original plastic floats can become heavy, porous, or completely cracked. When a float fails to rise properly, your carbs will either flood the motor with raw petrol—causing heavy fuel smells and hard hot-starting—or completely starve your main jets at high engine speeds. Swapping out your broken or missing parts for this high-quality aftermarket Hyosung carb float is a vital step in any professional clean-out. It guarantees that the fuel line supply shuts off exactly where the factory intended, ensuring a reliable power delivery during your next workbench restoration project.
💎 FUEL CONTROL HYOSUNG CARB FLOAT SPECIFICATIONS
| Stops Sump FloodingPushes the inlet valve firmly shut the exact millisecond your fuel bowl reaches capacity. | Reliable Engine StartsMaintains the perfect ready-to-go level inside the chamber to eliminate lengthy starter cranking. |
| True Factory BlueprintMolded carefully to replace old leaking original parts matching factory code: 13379HG5100. | Dual Carb RebuildSold as a single item. If you are executing a full overhaul on a v-twin stack, please change quantity to 2x. |
📜 Confirmed Fitment Guide
Carburetted V-Twin Engine Group: Hinge dimensions and plastic float heights are verified for the standard fuel setups noted below. See the diagram picture for lower body schematic positions.
- Hyosung GT125 / GT125R Sport: Fits all traditional twin carbs across all model years.
- Hyosung GT250 / GT250R Sport: Fits dual-barrel carburetted sports setups.
- Hyosung GV125 / GV250 Aquila Cruiser: Fits carburetted cruiser configurations (GV125 variants up to 2017).
If your main needle seat is leaking or missing its soft rubber tip, click right here to add the matching Carburettor Float Valve to your basket order.
🔧 Install Tips
- Set Your Heights Accurately: For most traditional v-twin carbs, you should aim for a total float height measurement of approximately 7mm. Use a caliper to measure from the flat aluminum casing gasket face (make sure you lift the paper seal off first) down to the very top edge of the black plastic wings.
- Use a Gentle Touch: If your alignment is off, take a small pair of pliers to carefully bend the central metal tab that makes contact with your needle valve pin. Never apply tool pressure directly onto the soft rubber tip of the valve itself or you will ruin the seal face!
- Check Your Hinge Pins: Make completely certain that your straight pivot pin is clear of gummy fuel varnish or green scaling. The plastic wings must pivot smoothly up and down under their own weight without catching or sticking against the pillar towers.














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