I FIGURED IT OUT THANKS TO YOU GUYS!

Just wanted to stop by and say thank you to everyone that responded to my post. I got some really good information from RICHARDB and looked at WHOME'S XB500 controller post and it helped me alot. I looked through my controller wires and saw 2 white wires that plugged into eachother. I thought it was odd cuz they were unaccounted for and both came from the controller and plugged into eachother. I unhooked them and turn the key on and it whipped past 20kmh straight to 48, 49kmh. I drove it and i was going 45 to 46kmh wich is equivalent to about 30mph. This Greenbee JS500 really goes now. Again thanks to everyone and this is just an example on how this forum helps so many people.
P.S. I hope to be doing some mods very soon. Thanks Big Joe