How do you take out a restrictor plate from a 49cc gas scooter?

Some are governed by a mechanism in the transmission, a plate inside sometimes can be removed. Many, like the Honda ruckus, are governed by the CDI ignition module. Replace it with a high performance one. The baja SC50 is governed by horsepower it cant go more than 50mph because physical power restricions. Try upgrading to a performance exhaust, cone type air filter and a CR7HIX spark plug set to .40"