Well, I believe I have come to the end of my road. I've messed with this bike for months, new carb, new throttle cable, new rings, guess I don't know what I'm doing! I'm going to sell the bike, got it running yesterday and took it for a ride, seems the gas tank isn't venting properly or whatever...runs out of gas, release tank filler and it goes woosh! And it's hard to start...getting too old for this. Would you all suggest I sell in on the Market Place here on this site or perhaps Motorcycle Trader? Thank you for all your help...

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I've had exactly the same problem on my 360. Try pulling the fuel cap and clean it or at least blow through the vent hole w/air gun. There are kits to rebuild that cap, so you can clean it up. Ultrasonic can help too. Don't lose that little clip that holds cap on. Use a magnet to catch it on disassembly.

If you are willing, send a message for your location. ~may be interested in bike. . Trust me when I say, I've had my shares of tuning mine. haha. There must be a reason its a 1 year bike.

I do think you can get it going though...

If this was a case of "jack up gas cap, install on new bike" the problem would still exist. 

I've experienced this on my DT360A as well. The cap has an indirect path for venting to prevent splashed fuel from escaping easily. In my case the problem manifested itself on my first long road ride. I filled the tank at a gas station and within a couple of miles I noticed the engine "leaning out" and then it quit. It was easy enough to do a roadside repair by disassembling the innards of the cap and clearing the vent path of debris from a prior tank derusting event.

As far as ease of starting I did not find the bike hard to start. The automatic decompression worked well and the stock CDI sprarked reliably. I did find early on that the resistor in the spark plug cap had failed. I replaced it with a solid rod (zero ohms) cut from the center electrode connection of an old spark plug and started using the easier to find resistor spark plugs.

It took me a while to learn that when the motor had cooled off partially, it took less kicks when the enriching jet circuit was opened ("choke" on). Early on I was afraid of fouling the plug with fuel but learned that the engine was tolerant and I was being overly cautious.

It seems you've put a lot of effort into the bike. It would be ashamed to give up when you may be so close.