If I were to forget to unhook the battery when pulling distributer what are all the possibillities I could short out?

or how could I find my timing mark again so I know the car is on time?

With electronics, the number one thing you don't want to do is short something out. Assessing the possibilities that you shorted something out are difficult to say. In my opinion, the greatest risk is to the ECM and then to the Ignition Control Module (igniter). If you turn the ignition key to ON (Position II), does the Check Engine Light come on and then go off after 2 seconds? If it does, then the odds are that the ECM wasn't damaged. If you just physically removed the distributor from the engine, and didn't disconnect the wiring harness, then you likely didn't do any damage to the igniter.

I recommend you read and follow sections A and B below:

http://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563.html

Here's how to make the final timing adjustment, but you first need to get your engine started and warmed up:

http://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-46563.html#post219963

You need to consult a Haynes Manual for the idle rpm and timing setting for your engine.

If I were to forget to unhook the battery when pulling distributer what are all the possibillities I could short out?

or how could I find my timing mark again so I know the car is on time?
It is always good practice to disconnect the battery during electrical parts replacement.
I wouldn't be too concerned if you replaced the distributor with the battery connected. I have replaced dozens of Honda distributors this way with no problems.

You can follow the above link to some detailed directions to set timing. Some Hondas are set at 16 degrees while others are set to 12 degrees. This won't matter if you have a basic timing light. On the crank pulley there are two sets of timing marks: a single mark to indicate TDC and a set of 3 marks which are used to set timing. The mark in the middle is the target and the other two are +-2 degrees. It usually helps to apply some white paint to the center mark.

If I were to forget to unhook the battery when pulling distributer what are all the possibillities I could short out?

or how could I find my timing mark again so I know the car is on time?
It is always good practice to disconnect the battery during electrical parts replacement.
I wouldn't be too concerned if you replaced the distributor with the battery connected. I have replaced dozens of Honda distributors this way with no problems.

You can follow the above link to some detailed directions to set timing. Some Hondas are set at 16 degrees while others are set to 12 degrees. This won't matter if you have a basic timing light. On the crank pulley there are two sets of timing marks: a single mark to indicate TDC and a set of 3 marks which are used to set timing. The mark in the middle is the target and the other two are +-2 degrees. It usually helps to apply some white paint to the center mark.