Name: Intake Pipe O-RING (Inlet Boot Seals) x2 - GV125 GT125 RX125 GV250 GT250 Hyosung
SKU: oring4intakepipe1
Availability: InStock

Intake Pipe O-RING (Inlet Boot Seals) x2 – GV125 GT125 RX125 GV250 GT250 Hyosung

Estimated delivery dates: May 2, 2026 - May 4, 2026

Price range: £7.99 through £9.99

🌪️ STOP THE AIR LEAKS | VITAL INTAKE MANIFOLD SEALS (x2)

Revs dropping slowly? Hard to start? Over time, heat turns your intake O-rings into “hard pasta,” causing air leaks that make your engine run lean and dangerously hot. This Front & Rear Kit restores a 100% airtight seal to keep your V-Twin idling perfectly.

✅ No More Leaks: Ensures no “false air” enters the combustion chamber.
🛠️ Dual Kit: Includes 2x O-Rings for both Front and Rear manifolds.
⚙️ Critical Protection: Prevents lean-running damage to valves and pistons.
📦 Wide Fitment: Suits Carb & EFi 125/250 Models (Part# 09280H32006).

💡 DIAGNOSTIC TIP:
If your bike stays at high revs after you let go of the throttle, or “surges” at idle, these seals are the #1 suspect. Replace them before adjusting your carbs or sensors.

Description

Between your engine and the intake pipe (aka inlet manifold) sits the crucial sealing O-ring. It ensures an airtight connection for proper engine and carburettor function and prevents harmful debris or air leaks that can damage your engine internals.

Over time, these O-rings lose elasticity, harden, and crack—much like uncooked pasta—especially after years of heat cycling. Even bikes as “young” as 5 years can suffer from degraded seals.

💎 Vital Air-Leak Prevention

When worn, symptoms include temperamental running, fluctuating idle, and lean mixtures that stress spark plugs and valves.

Airtight Seal Ensures stable idle and smooth revving.	Engine Protection Stops dust/debris entering the cylinder.
Dual Manifold Kit Covers both Front and Rear boots.	High Durability Heat-resistant rubber for long service life.

📜 Confirmed Fitment (Carb & EFi):

⚙️ OEM Part Numbers: 09280H32006 | 09280H34000 (Item #18 in picture diagrams above ^)

GT125, GT125R & RC	GV125 & GV250 (All Carb Models)	GT250 & GT250R (Carb Models)
RX125 (Single)	GV250 EFi / Ei	GT250 & GT250R (EFi Models)

🔧 Installation Advice

Maintaining your intake pipe O-rings is a simple and cost-effective way to keep your Hyosung running smoothly:

**The Clean-up:** Ensure the cylinder head surface and the manifold boot are perfectly clean of old rubber or grime before fitting the new rings.
**Light Lube:** A tiny smear of silicone grease can help the O-ring seat perfectly without twisting during manifold assembly.
**Don’t Over-tighten:** Snug the manifold bolts down evenly; over-tightening can warp the plastic boot, causing a fresh air leak.

📧 FITMENT QUESTIONS? Send us an email with your bike details and we will confirm fitment for you! For technical help and “no-start” diagnostics, visit the HyoRiders Forums.