I have an X1 49cc bike. When I hold down the electric start the bike turns on but if you let go of the starter it shuts off. I read the rheas about adjusting the idle screws and tried that already and it still won't idle on its own. Cleaned the carb and fuel lines and nothing. What else should I...

When I pull on the pull start, it doesn't start. When I put carb cleaner on the carb, it starts but won't accelerate. I don't know if it could be the carb or the spark plug or anything else. I also cleaned the carb completely, so I don't know what to do next. Could it just need adjusting in the...