Hyosung Starter Sprag Clutch Driven Gear Bearing – GT125 GV125C GT125R Carby

Description

The V-Twin engine starter setup relies on completely smooth, loose-free parts to spin over correctly. This driven gear bearing sits right behind the heavy magnetic flywheel and is very easy to miss until it locks up tight or develops severe wobble play. When that happens, it causes a lazy starter feel or a complete failure to crank over. If you are already opening up the left-hand side engine casing to inspect your one-way sprag clutch or rebuild the flywheel, fitting a fresh bearing is the only proper way to guarantee long-term starting reliability on cold mornings.

💎 Ensure Every Start Is a Success

📜 Confirmed Fitment Guide

🔧 Install Tips

• Drain or Tilt the Bike: You will need to take off the left-hand engine generator cover to access this internal space. Tilt the motorcycle far over to the right or dump the engine oil first to avoid a messy splash pool on your floor tiles.
• Use Proper Clip Pliers: Have a clean pair of circlip opening pliers and a flywheel pulling tool ready. If the old bearing race is tight on the shaft, applying a tiny bit of heat around the alloy boss area will help it slide free cleanly without galling the metal.
• Press Completely Flat: Press the fresh bearing package perfectly straight, square, and flush into the gear hole seat. Never strike the delicate open cage rollers with a hard steel hammer—always use a smooth socket drift hitting only the hard outer casing rim.