Fuel mixture problem??

[millwrightullom]

My question is fairly simple: What should my fuel to oil mixture be on a Yamaha 125 Tri Moto? I know I'm running really rich, it starts but won't stay running. Anyone know???

[TimSr]

Ratio is determined by the oil, and not by the bike. Cheapo outboard motor oil is generally mixed about 20-25:1. Good dealer non synthetics such as Yamalube run at 32:1, and synthetics should run at 50:1.

[millwrightullom]

Thanks man, I have no dealer by here, so I'm glad to rely on other ATC,ATV maniacs for help! It is appreciated!

[200Xtreme]

I run amsoil, and its mixed at 100-1.

[86250r]

hell yes amsoil is the way to go actually the only way.

[Tri-Z Pilot]

Amsoil,? I dont think I have ever tried that, does it actually work that good? I run klotz benol at 32to1 in my tri-z now, I like it and it changes the exhaust smell too, kinda like soy beans or something I guess.