Hi could anyone please help me out I have a xj750 engine but no carbs to fit it I brought some carbs that was advertised as xj750 then spent anther £250 getting them refurbished and it turns out they are not for a 750 I measured the distance from the inside of the intake mount one to the farside of intake 4 and its just under 11 inches but most of the carbs listed anywhere are ten and a half inches, Well that´s what Im told if they really have measured them, I have a xj650 engine that has carbs but there is a problem with it its only got good compression on 3 pots, and was advised to get another engine hence the 750, the intake mounts o that are all a