i have a 97 cbr 900rr and a month ago i read the post on the f4i gauge swap and decided to do it to my bike...well a month later gauges are in and everything works..that is except the speedo...i check all of my wires and everthing looked right...when i go down the road i could be going like 50mph and the speedo on the bike is only reading 6 or 7 mph...does anyone ever had this problem or know whats going on? iv heard someone say that i might need that speedo healer...anyone got a clue whats going on........