motor is pretty much stock. stock reeds, stock head. rebuilt just last winter hasnt been ridden more than two times on that. cylinders are bored .040 over. runs absolutely perfect tho. i know the price sounds steep for the year but it is a brand new quad. i just spent over $2000 on parts. plastics, rims, tires, paint and everything on it has not been ridden on. there is not one scratch on the quad. let me know tho i really gotta sell these things.