Three turns out from all the way in will get you close
The fuel to oil ratio for a 2000 model, 15 hp Yamaha outboard would be 50:1. Roughly 1 pint of 2 cycle oil to 6 gallons of fuel.
50:1 ratio
Premix (mix oil and petrol at a certain ratio) Contact you local Yamaha dealer for the best mix.
40 parts gasoline one part two cycle oil
I would run a mix of 32:1 with 89 octane fuel.
I have a 1983 IT175 Yamaha and the fuel mix is recommended by Yamaha at 28 to 32: 1 I use 30:1 ratio. Hope this helps
50ml of oil to every litre of petrol
36 parts fuel to 1 part oil..........
Around 32:1 depending on the quality of the oil.
it should be 24:1 if your using yamalube 2 stroke oil
I believe Yamaha came out with oil injection. You do not mix the oil with the gasoline - the oil is in its own reservoir and mixes automatically.
I run a 50:1 ratio in mine, with slight mods.(jetted and pipes) I have a stock 01 and mix is 300ml to 10ltrs