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fuel mixture oil parts
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  1. YZ-F & YZ
    Hi, 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...
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