1984 ezgo 2 stroke?

[fivestarranger]

Hey everyone,
I just picked up my first cart last night. It's a 1984 ezgo and it was given to me by a buddy. It ran about a year ago but since has sat. I noticed it was missing a bolt that looks like its supposed to hold on a oil line to the motor right behind carb. Is this a special bolt that I will be able to order somewhere? If not is it possible to block of the oil pump and just use premixed gas? If so what would be a safe oil to gas ratio?
I'm planning on getting a new battery, fresh gas and a new plug before I attempt to get it started. Is there anything else I should add to the list to get this thing going? Can you buy high performance air filters? Whats the best place to buy tires to accomidate 4" lift? Rear seat kit?

As you can tell I have lots of questions and Im eager to get this thing going. Thanks for the help! Eric