2004 Kawasaki KVF750 4x4, Service Manual., Page 299Get this manual
12-50 FINAL DRIVE Front Final Gear Case
The tooth contact patterns of both (drive and coast) sides
should be centrally located between the top and bottom of the toothThe drive pattern can be little closer to the toe and the coast pattern can be somewhat longer and closer to the toeIf the tooth contact pattern is incorrect, replace the ring gear shim(s), following the examples shownThen erase the tooth contact patterns and check them againAlso check the backlash every time the shim(s) are replacedRepeat the shim change procedure as necessary