HI Again Quenton
In answer to your questions;My engine idles well compression is good it has two long bolts that go through the head to the case, it runs very rough when you try to accelerate, the plug is black with fine soot, I believe it is running rich, I have a 76 main jet I have had the clip in every slot, it had 10 miles whin I bought it I very thouroughly cleaned the carb, changed the main jet to a 78 I think that is what it came with, I now have about 50 miles but has never ran well. I have not noticed getting it getting hot, like I said it has me puzzled, I have been working on small engines for many years I had a whizzer about 60 years ago, I am now 70 and would like to enjoy my bike,Please help, I cant imagine a "new" bike that wont run, also im at 5000 ft. Thanks a bunch