I was doing a routine valve adjustment and found a broken intake spring. This leads me to believe that there is a God, and that he likes me, cause the valve didnt drop, nor did it even hit the piston. All is well save for the broken spring. A quick call to XR's Only and a day later a set of KibbleWhite springs is waiting on my doorstep when I get home. (I still have to wait for the gaskets, but thats another story..) On to the question. Looking at the Kibblewhite springs quickly reveals that they are not the same as the ones in the head. The KB springs appear to be a bit shorter, and the seat is very thick, where the ones in the head are more like a cupped washer. I suppose they could be stock, but the bike is equipped with HRC's power up kit, so I'm not familiar with the spring set up. I will install them, and obviously check for proper height and coil bind, and as long as everything is OK, do you guys think there is any other potential problems I may encounter? Increased spring pressure cause a problem? Why the shorter spring and increased seat height?