I have one of the very first ones, serial # less than 300. I had the early issues with fuel getting in the oil. Yamaha fixed all. Last year I received a letter that Yamaha was offering me a free block replacement. So, I took advantage of this. The people that performed the worked told me the block they pulled looked pristine. It had 135 hours on it. Mine is 7 years old last month and still runs great. Obviously with the low hours I dont get out much anymore.Britt