Carburettor Carb Air Fuel Mixture Rubber Plug [Adjuster Screw Bung] – Hyosung GV125 GT125 GTR GV250 GT250

Description

The v-twin dual-carb setup has the fine air and fuel adjusters positioned deep inside a vertical channel. While this layout keeps them out of the way, it also creates a perfect tunnel for salty road spray and winter grit to settle in. Once that brass adjustment screw seizes into the alloy casing, it becomes an incredibly frustrating and high-risk process to drill or extract. Sourcing this genuine aftermarket Hyosung carb screw plug is your first line of defense. It seals that open access channel completely, ensuring your carbs remain effortlessly adjustable for any future restoration project.

It may look like a minor rubber dot, but this plug plays a massive role in protecting your engine tuning settings and overall fuel economy. A missing bung allows water to pool inside, which is the number one cause of unadjustable internal parts and expensive repair bills. Replacing a lost cover is a cheap, highly proactive move during any clean-out or maintenance routine.

💎 TUNING PROTECTION HYOSUNG CARB SCREW PLUG SPECIFICATIONS

📜 Confirmed Fitment Guide (Carburettor Only)

🔧 Expert Installation Tips

• Keep Tunnels Dry and Spotless: Twist a fine cotton bud down inside the vertical casting track to ensure the tunnel walls are 100% clean and bone-dry before you push the new rubber bung in. Any trapped liquid can corrode the brass.
• Smear with Silicone Grease: For absolute long-term weatherproofing, wipe a tiny smear of specialized silicone grease directly around the outer ring edge of the plug. This creates a superior moisture barrier that blocks road salt effortlessly.
• Watch Your Workshop Chemicals: These bungs are produced from raw flexible rubber. Avoid soaking or splashing them with aggressive chemical carb cleaners or raw petrol on the bench, as strong solvents can cause the compound to swell up out of shape. Always pop them in *after* your main component cleaning is finished.