What all parts do i need to get my suzuki 185 runin there is not top end to the engine?

Question

i just got the bike and really dont no much about them and there is like no top to the motor were the piston goes in and how much will the parts cost?$$$

Do not know the year and the numbers on the front of the bike are not there any more..

Answer 1

Always give year, make, engine size and model # when asking questions. We need all of that info to give an informed answer.
Check prices here -
http://www.bikebandit.com/partsbandit/OEM-Parts.asp
Go to "Cylinder" for pictures.