Specifications:  Pros: Big, powerful, 4x4, great turning, good price, high ground clearance Cons: Big, slow  First let me say that I do not own this ATV. My uncle does however and I feel that I have ridden his enough to qualify for writing this review.   The 2001 Yamaha Big Bear 400 4x4 has a fairly large sized fuel tank with a 4 gallon capacity....