I have a chance to buy an olschool honda 300, but the forward gears are stripped out. When you put it in gear and give it gas it just grinds the mess out of the gears, but reverse works fine. The ol 300 has a fresh motor in it and runs like a champ, not in perfect condition,but would make a great bike to build up for mud riding. Justcurious if anybody know how much it would take to fix this problem???