【ニンジャ250 プラグ交換】9万キロ走行したスパークプラグを交換します！バイク便ライダーの日常‼︎

I replaced the spark plug on a Ninja 250R that had traveled 390,000 km as a motorcycle courier. The plug I replaced it with had traveled 90,000 km. What happens to a plug that has traveled 90,000 km? Here is a playlist of videos showing the disassembly of the engine in this Ninja that traveled 300,000 km: [Ninja 250 Engine Disassembly] Over-mileage!! Disassembly of an engine used for motorcycle courier service with 300,000 km!    • 【ニンジャ250エンジン分解】超過走行‼︎  30万キロ走行  バイク便で使用したエ...   Here is an introductory video of this Ninja: [Ninja 250 Used for Motorcycle Courier Service] Introduction video of a Kawasaki Ninja 250 that has been in active service for 12 years and traveled 390,000 km!! The daily life of a motorcycle courier rider!!    • 【ニンジャ250バイク便で使用】12年間現役で39万キロ走破したカワサキニンジャ25...   We also have many other motorcycle videos, including circuit riding videos and maintenance videos, so we would be very happy if you subscribed to our channel (๑˃̵ᴗ˂̵) →