I just bought an '07 C90T, which is the basically the same engine as your 1500. It has only 4,500 miles on it, so I'm not sure about your high mileage. However, this is my third Suzuki. I first bought an X-6 2-stroke 250, put tons of miles on it, and then stripped it down and ran it on trails. I ran the you-know-what out of it and never had a problem. My next one was a 550 4-stroke road bike. I put 47,000 miles on that bike in just a few months using it as a commuter between Kansas City and Minneapolis, and again, never had a problem with it. So, you may have already guessed, but I'm sold on Suzukis, no matter what my Harley friends say about my "rice rocket."