For all you that are procrastinating about changing your cam chain tensioners, this is what can happen to your engine. This bike only has 4500, yes forty five hundred, miles on it. It is a 2006 Duece. Came in to my shop making a lot of engine noise that I didn't recognize as something I'd heard before. The customer advised me that he bought the bike with 1300 miles, and within 10 miles of riding the oil light came on and stayed on. The dealer he bought the bike from picked it up and took it back to their shop and found that the cam chain tensioner shoe had broken to pieces, with only 1300 miles. They said they flushed the pieces out of the engine, however you do that, I don't know, and replaced the cam plate with the screamin eagle one and new lifters. When I took it apart, here are some pictures of what I found. Replace that crappy tensioner system with the screamin eagle one or some other aftermarket one before the shoe breaks up and ruins your engine like it did this one. You will never get all of the pieces out of your engine unless you totally disassemble it. Just a heads up. Picture one, oil pump screen full of debris, picture two, oil pump body grooved and pitted, picture three, crank shaft end overheated, picture four, cut apart oil filter full of pieces of tensioner shoe.