Unfortunately I have to write this in english since my German is so poor and I guess you would not understand Finnish.
I just bought used 2000 km driven superduke and sometimes during starting I hear loud metallic sound from the engine and the engine does not start. I have have not touched accelerator during start. According to manual if you accelerate during starting the engine you will here this metallic sound.
Has anyone experience of this kind of problem? Is this serious enough that it could damage the engine?