Yamaha WR125R #4 - Removing engine head and bore

🔧 Yamaha WR125R Engine Repair – Head Removal & Cylinder Inspection In this video, I continue working on my Yamaha WR125R (2011) after discovering damage to the spark plug thread. This time, I remove the engine head and cylinder (bore) for a full inspection and to prepare for a proper spark plug thread repair. This is a critical step to ensure no hidden damage or metal debris is left inside the engine before reassembly. This video is useful for owners of: Yamaha WR125R Yamaha WR125X Yamaha YZF-R125 📌 In this video: • Removing the engine head and cylinder • Inspecting the piston and cylinder bore • Checking for damage or metal debris • Preparing for spark plug thread repair • Real-world engine teardown process ⚠️ Topics covered: Engine head removal Cylinder inspection Spark plug thread repair preparation Internal engine cleaning and damage control ⚙️ Why this matters: If a spark plug thread fails and metal enters the engine, it can cause: Cylinder scoring Piston damage Loss of compression Complete engine failure 👉 Previous video: Spark plug thread damage & full engine inspection [PASTE YOUR LINK HERE] 👉 Next video: Engine top end reassembly & first start attempt [PASTE YOUR LINK HERE] 🔍 Keywords: yamaha wr125r engine head removal, wr125 cylinder inspection, yzf r125 engine teardown, spark plug thread repair, motorcycle engine rebuild, 125cc top end repair 👍 If you enjoy detailed motorcycle repair content and real-life problem solving, consider subscribing for more! #YamahaWR125R #EngineRebuild #MotorcycleMaintenance #Yamaha #WR125R