joshbear

Hi pls can anyone help. My 10 year old has been building the 4X4 crawler. he loves a challenge and has go to the point where the chassis is built the motors and wheels are on and the remote built. So he tested it to find the front and back wheels were working against each other. I've had a look at the instructions but I am hoping there is an easy fix as opposed to starting again. the motors look like they have been fitted correctly so not sure where he has gone wrong. any help very much appreciated. Thanks Josh