Name: Throttle Body O-Ring Gasket Seal - Hyosung GV125-S (EFi Bobber 125 S)
SKU: 13143KG7200
Availability: InStock

Throttle Body O-Ring Gasket Seal – Hyosung GV125-S (EFi Bobber 125 S)

Estimated delivery dates: May 1, 2026 - May 4, 2026

£29.99

🔗 THROTTLE BODY CENTRE O-RING (FIGURE-8) | GENUINE HYOSUNG OEM

The definitive fix for “untraceable” air leaks. This bespoke figure-8 seal sits between the air-intake and injector-housing halves of your throttle body. A precision-moulded OEM part essential for vacuum integrity.

✅ Ride Sooner: Restores smooth idling and corrects lean-running issues caused by aged seals.
🛠️ Fits: GV125S Aquila Bobber & GV125-S EVO.
⚙️ Plug & Play: Genuine Hyosung Factory part—bespoke dual-bore geometry for a 100% seal.
📦 What’s Included: 1x Figure-8 Throttle Body Internal O-Ring.

💡 SPECIAL FACTORY ORDER: Extremely limited run.
⌚ Delivery time is approx 2 weeks (or less). Please manage expectations as these are made by Hyosung only.

Description

If you are chasing erratic idling or “ghost” air leaks, the culprit is often the internal seal between the two halves of the throttle body. Unlike standard O-rings, this is a bespoke Hyosung-manufactured figure-8 seal. It bridges the gap where the airbox/stepper motor pipes meet the lower assembly housing the injectors, TPS, and TMap sensor. Using a “cheap bodge fix” or generic sealant here will eventually clog your sensors—only this OEM seal provides the correct vacuum-tight compression required for the V-Twin intake.

💎 Precision Air-Flow Control

Dual-Bore Geometry Seals both front & rear cylinder intakes.	OEM Material Fuel-resistant compound for longevity.
Air Leak Solution Fixes lean-running & surging idle.	Bespoke Casting Matches the unique throttle body mating faces.

📜 Confirmed Fitment Guide

✅ FITS: Hyosung GV125-S 2019+ Onwards (GV125S EFi Bobber Models).
✅ FITS: Hyosung GV125-S EVO (All Years).
❌ WILL NOT FIT: GV300S Aquila.

💡 [PAIRING]: Air leaks are often misdiagnosed. If your idle is sticking, it may be the ISCV (Idle Stepper Motor) failing. While the throttle body is apart, inspect your sensors.

🔧 Maintenance Advice

Bore Alignment: Ensure the figure-8 is seated perfectly in the groove before tightening the housing bolts. Even a slight pinch will cause a vacuum leak.
ISCV Check: If the O-ring is replaced but the bike still hangs at high RPM, check the ISCV (Idle Stepper Motor) for carbon buildup or mechanical failure.
Part Reference: 13143KG7200 , 13143HG7200

📧 QUESTIONS? Email us or visit the HyoRiders Forums.