HI, Ive just bought a second hand 250 Marauder and for a second hand bike there isnt much i can complain about. But there is one thing that i cant seem to figure out. For some reason i cant drive in a straight line on it! i dont know if its the swing arm or the front forks, but something is wrong with it and im hoping someone here will have experienced this problem before and tell me what it was and how easy it was to fix.