Doe's anyone know what the differences between the letters on the end of the...

[bravehearted33]

...1985 Yamaha XJ 700 means? For example there is a XJ700N, XJ700NC, XJ700X and sme others.ect. Whats the difference?

 

[Nomadd]

The XJ700J, K, L, N and S are air cooled 2 valve engines. The X is a water cooled 5 valve engine.
Cs are just California versions of the J, K, L, N and S. J is 82, K is 83, L is 84, N is 85 and S is 86.