I appreciate your response. But something tells me that a picture of what is actually done would make EC&Ms code violation column! As you and others in the business know you see the damnest things out there.Yes you did get some off the wall advice about wiring a generator. Some is correct and most is incorrect. Now I will try to give you the correct information about wiring it. All the information that you are going to read is from the National Electrical code which is used through the United States, if you follow the informatiopn from the code book you will have a safe electrical job done correctly.
First you have two sources of electricty one from your power company and the other from your generator, which is a seperately derived power source. Yes all the new codes require a four wire connection and it can be done with what you have. You can not wire a generator to your house unless you have a transfer switch, whether manual or automatic . If you do not use one you will have have one house that will go up in smoke after the explosion. The next thing that you need to check is your insurance company and see if they require a licensed eletrician to intall and wire up correctly,which I am sure they do. Remember most electrical fires start during the evening when you are asleep.
Just for information sake about the ground wire Green or Green with yellow stripe is your earth ground and your neutral is the White wire it is not your ground wire. Yes both the white and green are needed for a safe operation of your system and to help insure that there is a potential difference so the breaker will trip or the fuse will blow. In my opinion is would be wise to have a qualified electrician do this for you it will be money well spent. Some of the problem that you are going to run into is wiring sizing issues , ground wire sizing. correct grounding procedures,hot wire sizingissues, breaker sizing as well as gettting it inspected and your permit sign off. If I lived in your area I would be more than glad to sixe it all for you and install it for you at no charge. Now you probably ask what qualification do I have I am a licensed commercial electrcian and I have done a few of them. I know everyone will say it is simple and it is only hooking up wires, but there is more than that and a lot lot of safety issues.. Good luck and please get it done correctly weekend rider