hello all I am new to this forum. I have a 1998 warrior that I purchased for my niece. I have some issues I was hoping you guys could help me out on or give me some starting points. the quad revs really high when I start it up. so high that I immediately shut it down. it starts up every time but it wont quit at this idle speed even if I try to adjust the idle screw it still idles extremely high. any pointers would be greatly appreciated