the breaking needs some miner adj yes it all plugs up you need to make ur own pos power from battery to the starter silonid and from the neg of battery to the gokart frame . i cut all the wires and brought them up to my steering wheel
there behind the flywheel
i found a link on here that will help
http://www.oldminibikes.com/forum/honda-clone-engines/7821-installing-electric-start-6-5-clone-harbor-frieght-4.html