I'm looking at a 86 XR600R motard it has the old style tank and back number plates. Is it easy to put a 90's style tank and number plates on it or do I need to modify a lot of stuff? I do know I need a different seat. Any more pointers on what to look for on a 86? I know it had issues with the 3rd gear breaking in 85/86 which apparently was solved in 87. Does anyone know how? And what about the twin carbs? A good or a bad thing? I've read somewhere that its harder to start. I have no experience with kickstart bikes...am I in for a world of pain?