25 to 1
24 to 1
Premix (mix oil and petrol at a certain ratio) Contact you local Yamaha dealer for the best mix.
No, Yamaha's TTR lineup is all 4 stroke motorcycles.
Yamaha recommeded 20/1
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
40;1
50:1 ratio
I would run a mix of 32:1 with 89 octane fuel.
50 to 1. Use good Oil
50:1 mix
Three turns out from all the way in will get you close
50ml of oil to every litre of petrol