My 2002 Stone ran great with ported heads, open air box, Power Commander, a 10 spring clutch and flywheel out of a Lemans, stiffer clutch springs, a Stucci cros over and Lafranconi Competition mufflers. I have ridden it over 100k miles, until last weekend when the engine locked up. I suspect the timing chain tensioner failed, and the timing chain got bound up. Luckily it doesn't appear to have hurt the pistons, just may have kissed the valves and knocked a little carbon off the top of the Sinestro piston. That's all I could see with the bore scope. I am now just trying to figure out a rebuild, and upgrade plan, to gather the parts. I have a set of FBF pistons, that I ran for a while, gave a little more power but didn't like sitting at stop lights in 100 degree weather. So I put the stock pistons back in. Maybe I should just put it back together the way it was?
Do you have any suggestions for the next iteration of my build? Or do you think it is maxed out now for performance vs. reliability? Like I said, I am just hunting for ideas at this point.