Hi, sometimes when I start my car it will go for about 15-25 seconds and then just die. Is there a way of solving this or is this normal for a 320i (1978). Also, when I have it in first gear and I let out the clucth properly not too fast not too slow, it will be a little sloppy and improper feeling for about 5 seconds and then it will click in or something and be normal. Why does it do this? Thanx