threaded

Hi, I don't have much info on the bike I have, all I know is it's a Motovert 140, seems to have a Lifan engine. A friend of mine once took it to a shop for a service, and this so called "mechanic" has completely threaded the oil drain hole (apparently not the first time he has gone all trigger...

Hi I have a z155 with an outer rotor kit with a v2 race head. I have a cam sprocket that has 2 marks either end. On the tn race cam there is a b stamped between the 2 threaded holes and on the other side between the 2 theaded holes there's a non threaded hole. My question is which was dose the b...