So, the first thing I did was get a new battery. Filled up electrolyte, charged overnight, and it's ready. Then I realized that I was far from ready..

I thought the only other thing to do would be to clean out the fuel tank and clean the chain. But I'm unable to even pull out the tank. I bought a manual, but it didn't help much. Can anyone help me by telling me:
1. Steps to pull out tank.
2. How to clean it?
3. Anything else I need to do after the 2 year rest for the bike?
Thanks!!!