I have a komet k30 that I am going to use at a dirt track in Washington this winter. I am planning on doing a refesh on it. I noticed that the crank shaft exits on both sides of the motor, and in every k30 picture I have seen, it only exits on one side. I also noticed that the wrist pin has needle bearings, I don’t know if thats normal or not for these. I only know kt100’s and 4 strokes, so any tips and answers would be greatly appreciated.