Seller notes

Motor will fit directly into an 86 and 87 YZ 80 The bottom end will bolt into a 84 to 87 if you use it a different top end made for 84-85 There must be some slight changes on those years. Cylinder itself works on 86-92 Haven’t opened it up. Previous owner was able to show me it ran by push starting the bike. Unknown internal conditions, but I was able to hear it run. It did shift through all gears just fine and kick starter worked Looking through the rad valve area I can see some wear inside t...

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