Originally posted by: WoWIEE
its a 2007 150cc
I am not sure if this would apply in your case .
But in the late 60's in some States permitted 15 year olds to ride but there was a restrictor on the throttle . It was located above the slide where the throttle cable is connected under the screw cap of the carb.
What the dealer would do is cut a slide barrel to a specific length and place it between the spring above the carb slide so it would stop the carb slide from opening full bore.
Not sure if this applys that is the only thing I remember and it was an easy fix to prevent the machine to do its full potential.