I am trying to find prices on complete rebuild kits for the engine of a 91 kawasaki ninja zx11C2 but am having a hard time finding any. I have found many other bike kits on ebay for around 300 dollars. Aftermarket of course. My engine is burning oil due to faulty valve seals and I am not sure as to whether the rings are shot. I will be doing a pressure test after new years but I would like to know if it would be cost effective to just by a whole kit and replace it all whether it needs or not. Or do you guys think I should just find out what it needs and replace on that?