Ключевые слова: 250cc, air, assembly, automotive, bike, carburetor, closeup, compression, craftsmanship, cylinders, design, engine, engineering, exhaust, filter, frame, fuel, horsepower, ignition, isolated, maintenance, mechanical, mechanics, metal, motorbike, motorcycle, oil, parts, performance, pistons, repair, riding, speed, system, tank, technology, throttle, torque, valves, workshop,