I bought a trashed 2006 crf 100 for my son! we tore it down and replaced cylinder piston cam springs etc with the bbr 120 kit. It ran for about 20 minutes then the cam chain broke. It was adjusted as per the Honda service manual. I replaced the cam chain and rejetted to a 105 main and 38 pilot, what a difference it made, the little bike really woke up.
Problem now is it will not idle after it is warmed up and is a little hard to start warm. I am getting some cam chain noise as well.
Any thoughts or experiences would be appreciated.
Thanks
Bill