YZ-F & YZ
I'm totally new here and I don't know anything about motorbikes. I bought a Yamaha yz 125 from 1986 (http://vintagemx.com.au/wp-content/gallery/yamaha-yz125/1986_yz125.jpg) but I don't know what I should change, when and what the fuel mixture is.
Can you guys give me some info please? And...