At first it was running fine as i rode it. Then it stalled, and when it started it only ran at idle. If i gave it gas it stalled. So i took a look at it and the carb intake boot was cracked witch i figured was the problem so i replaced it. Then it wouldn't start at all , so i cleaned the carb witch looked fine as did the spark plug. I disconnected the air filter and when it tried starting it put my hand over the air intake of the carb to reduce the amount of air entering the carb. At this point it did start but ran at like full throttle and i wasn't hitting the gas at all. It then soon stalled and would restart but with the same problem. Its not the idle adjustment because i already cheacked that any ideas?

 

on my little 80 i had the same problem...my throttle cable was all whacked up....