Hi ! I`m in search for a motor specialist. My Honda CRF250L has a engine problem or my ears are too sensitiv. I think its a crank bearing problem but ... maybe its only a cam chain tensioner or something. Before i start to dismember the whole engine it will be nice to get another position / opinion. I was already at DuEkSam / GUD etc. Only sorry Sir and blablabla. Maybe there is a bike freak on site. Regards Michael