Re: Help a little newbie with some things.
The large spring is going to fit on the clutch cable to prevent the cable from melting against the engine. Also your wiring should go as follows:
Blue to blue to green. Black to black to yellow/red. The white you can ignore.
I don't see the back crank attached to your back wheel? Its hard to see if your bike is a coaster break or not. If it is, the crank that comes with the Chinese kits will not fit properly and you will have to find someone who can widen the center hole, but don't worry, it's easier and less expensive then you might think.
When you remove the chain from the bag, how it connects will be very self explanatory. Each bike is going to be a little different and you will have to remove a few links to get it to fit rite. you don't need some expensive chain breaker to do this. Most of us use a rubber mallet and screwdriver to pop off the links.
Your muffler looks like it has good clearance from the ground. Now, how does it peddle? Do your peddles hit the muffler? If they do, that's a problem. You will get 20 different answers from 20 different people if you ask how to fix this. If you have the tools, then heating and bending would be the simplest, but take your time with it. Do it slowly or you will kink it.
If you continue to have problems, then you are in the right place. Don't be afraid to ask questions. The people are friendly and have solutions for the problems you may encounter in the future. Keep us up to date with your build, so far it's looking good!