Two of my fiends and myself each have a rtv900. The 04 model will spin the rear tires and climb our "test" hill in 3rd gear. It pulls better than my other friends 06 model. My 05 will climb the same hill in 2nd when cold, will not climb it when warmed up. Does not matter if full throttle or soft pedaled. Motor runs full rpm's and rtv just comes to a stop and sit there. Will not even untrack on test hill. Dealer no help so far but are trying and eager to help. I have heard that there was a quality control problem with these units, was there? Dealer says that he sold a new one last week that would spin the tires and really accellerate. More so than other new ones they have sold . Whats the deal or the fix?</P>