So i bought a pocket bike from a pwn shop. I know nothing about pocket bikes. When the guy sprayed starting liquid on the thing on the bottom the bike would start, and he would rev it a lil bit but then it would just die. He said that it hadnt been used in a very long time. Any one have any ideas on how to fix this? Its a gas bike. Has a pull start with a key. Ive been told to clean some stuff or change spark plugs but everyone says differnet things. Any advice would help. Thank you.