Can weight effect when you hit puberty?

How much you weigh generally doesn't effect puberty however genetics do. Some people start earlier than others.

Extremely overweight boys will hit puberty slower and grow less quickly than lean mean muscle machine games. This is because that stores estrogen estrogen counters the natural testosterone building within the body. Boys who wish to grow more quickly and get bigger penises need to lose the fat as quickly as possible and avoid estrogen laced foods like chicken and dairy products