Just been giving a 1984 honda big red atc 200es for free. The owner said that when he left it ten years ago all that was wrong with was a clogged carb. It now has three flat tires, dead battery and it seems that gearbox wont change gear. should I pull the gear box open and spray WD40 on a all the parts and force them to come loose? Is it worth fixing or is it too far gone.