Thunderm Tiger TS4N - Help Please

[-Richard-]

Hello all, i have bought a thunder tiger ts2n and when you turn the electronics on the car the steering turns to the right now i have checked the controller and its not that thats set incorrect. Someone said to me about resetting the is it called servo? by unscrewing it popping off or something? Can any one help me and give me any advice etc and if the proceedure i have been told sounds correct could you please confirm what i have to do please?

Also the spur gear? the big cog that the clutch engages with is well worn so i am looking for a new one if anyone could point me in the right direction.

A big thanks to you all!