Volvo 245 DL does not start

I bought a Volvo 245 DL with a b21a engine and 107 ps, first registered in 1978. With the round lights in front. Now I bought the Volvo in the Ebay, forwarding company brings the car to me. As soon as it arrived, it doesn’t jump on. Thought it was just on the Shoke, because we didn’t find the lever. Nja later I found it, pulled it, started it, but still doesn’t jump on. At the beginning he did a couple of explosions but didn’t run, sp Rich he comes a few times but when I release the ignition switch he doesn’t run. After a couple of days he didn’t do anything anymore. No matter if give full throttle, pull Shoke, let go of Shoke at the start, he doesn’t do anything anymore. The freight forwarder said the owner drove the Volvo on the truck. So now he can’t miss it so far. He wrote he has a heated garage and he is standing outside with me and has now constantly around the -4 degrees. As we got him it had about 15 degrees. Mu ss has something to do with the carburetor, SU Hif 6. Control times, ignition time, sparks, fuel supply, battery everything is fine. Spark plugs are always wet after starting. And the compression will certainly not be when the Volvo ran at the previous owner. By the way, Tüv still has 1 1/2 years. I looked in the inet once whether there is something to read or if something is known. But I found nothing and therefore promptly registered here. I know too The carburettor is decomposed, but nothing unusual can be seen. (I also tried to turn on the speed screw if it changes something when starting but no chance). In the float is no gasoline, stand is ok, valve is ok. No nozzle stick is oval and not clogged. Needle is springed and I cannot detect any damage. Oil is also enough in it. I really don’t know any more, thought maybe of a repair kit for the carburettor. Gaser, but maybe some of you guys know the problem, would be nice if someone could help me.