gears ar'nt kicking in
ok so my frien bought this car and its a 2 speed it shifts and everything but sometimes the gears dont work we will be driving it and it automaticly loses power but the engine can rev but it doesnt move so i shut off the car and as the gears slowed down the gears kicked in again and jumped a bit so if you start it again it works but then the whole thing starts over again after about 50 seconds of driving