Actually, 2 four wheelers now, both Yamaha Warriors.  A great all around sport quad with a 6 speed manual gear box, motocross type suspension and reliable four stroke power in spades.  The red ATV is an 1987 model, the blue/white one is a 1997.  More recent pictures to follow soon, as many parts of the old quad have since been swapped to the new:  White Brothers R Series Exhaust, rear Pure Sports Realter AT Tires and Douglas .190 Wheels and front ITP Holeshots also on Douglas .190's.  Future modifications include matching front and rear grab bars, nerf bars and skid plates.  Front & rear bars + nerf bars will remain on the old quad.