Citgo
well i know were you can buy yamalube 4 sae10wxx30 is
Yamalube is actually a lubricant. It was designed for the Yamaha brand of motors and runs quite expensive compared to other oil.
This oil is semi synthetic.
yamalube factory Yamaha
yamalube 20w30
Yamalube it is ment for the bike.
If your asking about pre-mix oil that you mix with the gasoline, they recommend Yamalube "R" (Yamalube racing 2-cycle oil) Mixing ratio : 30:1 or Castrol A747 For the transmission and gearbox, Yamalube 4 (10W-30) or SAE 10W-30 type SE motor oil.
32:1 yamalube
yamalube 4
SAE 10W30 or yamalube 10w30
yamalube 10w30
yamalube or 10w40