I bought this bike about 1 month ago. It's a 1972 cl350. I took it to a friend of mine and he adjusted the timing, valves, points, syncronized the carbs, and installed a new throttle cable. The bike is in pretty good condition and it runs great. What else should I do to it as far changing out old parts? It has 3000 original miles on it, but it was sitting for quite a long time. If it's running fine, should I just leave it alone or should I change out older parts with newer ones if I can? (bearings, cables, etc..) Also, the original gas tank has an 1/8 inch hole in one corner. Is there any way for me to patch it? I have the tank and seat off of a cb350 on there now but I'd like to put the original stuff back on. Thanks in advance for any help.