I never pay attention to mileage on a atv, only how it sounds and rides even if it only had 5 hours or 50000hours its gota sound good, also check the oil for water, also look yourself at the CV joint, check to see that its tight and its not a bad CV and a bad boot. NEVER EVER EVER take anyone's word about anything when purchaseing something LOOK FOR YOURSELF. If u want take some pic's and post them here for us.