Name: Intake Pipe O-RING (Inlet Boot Seals) x2 - Hyosung GV125-S EFi Aquila Bobber
SKU: GV125S-IntakePipeORINGSx2
Availability: InStock

Intake Pipe O-RING (Inlet Boot Seals) x2 – Hyosung GV125-S EFi Aquila Bobber

Estimated delivery dates: May 6, 2026 - May 7, 2026

£9.99

💎 INTAKE PIPE O-RING SEALS [x2] | GV125S EFi

Eliminate performance-robbing vacuum leaks and rough idling. These high-temp O-rings are critical for a perfect, airtight seal on your EFi engine’s inlet manifold. Prevent a dangerous “lean run” condition and restore smooth, reliable starting and throttle response for your Bobber.

✅ Function: Forms airtight seal for optimal EFi fuel mapping.
🛠️ Material: High-heat resistant rubber composite (won’t harden/crack).
⚙️ Fixes Issues: Rough idling, hard starting, fluctuating revs.
📦 What’s Included: 2x O-rings (Front & Rear seals).

⚠️ CRITICAL WARNING: This is for the O-rings ONLY
❌ Intake manifold rubber boot NOT included).
❌ Will NOT fit GV300S models—they use different seals!

Description

Over time, the heat cycles of your V-Twin engine turn the original O-rings into dry, hard plastic, creating tiny air gaps (vacuum leaks). A vacuum leak is notorious for making EFi bikes run lean, causing engine overheating, spark plug damage, and poor running. Using quality, heat-resistant seals is the definitive maintenance fix for life on the road. We justify supplying only good quality parts because this small gasket prevents major engine damage—avoiding cheap alternatives is vital for your engine’s survival.

💎 Essential Engine Health & Reliability

Engineered for security and peace of mind during your rebuild.

Airtight Seal Stops dangerous vacuum leaks.	High-Temp Material Resists hardening and cracking.
Fixes Rough Idle Restores consistent EFi performance.	OEM Dimensions Perfect fit in the manifold.

📜 Confirmed Fitment Guide

✅ FITS: Hyosung GV125S Bobber (V-Twin EFi model).
📅 YEARS: All S models from 2019+ onwards
❌ WILL NOT FIT: GV300S/SS models, older pre-2019 carbureted GV125s, or GT/GTR models.

💡 DIAGNOSTIC TIP:
If you suspect a vacuum leak, spray some carb cleaner or water near the seals while the bike is idling. If the idle changes, you’ve found the leak! Visit the Forums for more tips.

🔧 Install Tips

Clean Surfaces: Ensure the cylinder head manifold surface is perfectly clean and free of old rubber residue before fitting the new seals.
Lube Lightly: A tiny smear of clean engine oil on the O-rings helps them slide into place without pinching or tearing, ensuring a perfect seal.

📧 NEED GUIDANCE? Visit the HyoRiders Forums for detailed install tutorials and diagnostics help.