Apparently after the bike ride to get out of town hinga top speed, the engine stalled and could not live anymore. What happened? Apparently after the engine is disassembled, the engine valve and piston motor is broken after being hit by a valve perforated imitation that expands earlier. See the proof in the picture. Already know the right result? Padaha it is simply because the problem of imitation spare parts, motorcycle engines but the effects should be destroyed and repaired again.
The bike belonged to my friend and when some time ago has been repaired, but because the problem was eventually motorcycle valve should be repaired again. Previously I did not know if the valve is imitation, but when considered carefully by the mechanical workshop, it turns out valve is imitation spare parts. He said, was the cause of the engine valve jammed and eventually make a broken valve and the piston hole.