... hatch pattern, good oil-retaining characteristic. Resulting great increase in engine life.4. Precise machining size, good shape and location allowance5 ... ),Clutch5.Transmission V-belt6.Carburetor7.Magneto, Rotor and Stator, Ignition Switch, Key set, CDI unit, Ignition Coil, Rectifierscooter8. Timing Chain, Valves ...