While overhauling my mikuni carburetors on Yamaha XJ600N 1994 (4br) noticed that two of the main jets (maybe i'm wrong) are different sizes from two others. So i wonder, this is normal or some former owner of my XJ rejetted the two of these jets (why would he do that? ). Here is photo of my carburetors and the different jets and their sizes pointed (on the right carb i pointed specific jet that is different).
Thanks in advance, sorry for my bad english.
