84 US model XT600
 

I read somewhere on this message board that the 84 US XT600 has a Nikasil plated cylinder and later models do not. Can anyone confirm this?

I am new to this forum but not new to XT's.

I guess I'll answer my own question. I looked in the parts on a couple of sites that sell OEM and have the breakdowns. The 84 Xt600 only list 1 piston and 1 set of rings, 85 and up show over size pistons and rings.