250-500cc Which pre-mix and what ratio?

its worked great on my stihl trimmer, backpack blower, chainsaw and redmax blower. no smoke on any. i've never had it in a 2 stroke bike before.

The Stihl premium full synthetic works great with no smoke or spooge I'm just not sure about power valve deposits since chainsaws don't have power valves.

Thank you Lankydoug! I've been using Motul 800 with messy results. Tried a friends Maxima K2 which spooged the entire back half of my WR300. Today I tried Amsoil Interceptor and it was just perfect. Had a trace of spooge after 44 miles of single track with lots of slow rocky sections.

The Maxima loaded up a bit at slow speeds, the Motul was better, but the Amsoil felt clean clean clean. Never a hint of loading up and easier starting. Best of all its $10.39 a quart ten minutes from home.

I had similar results with other oils in my wr144, started using amsoil interceptor at 40:1 and no more spooge,runs great.Using quality non-ethanol fuel is also very important as Lankydoug has said in his post.

Glad I could help, even a blind squirrel finds a nut every now and again. I guess it was just my day

you can't get non-ethanol fuel over here so super it is

Thanks so much everyone for the many responses. As i suspected, there would be many opinions. However, after my research and also finding a guy that will sell me the Amsoil Interceptor for less than 9$ per quart - that is what i am going to go with . I will try 50:1 as it is recommended but might mess around some with the ratio. I also have one gas station local that sells ethanal free gas so I will give that a shot. I had a chance to ride this for just a bit finally and I am hooked. This is so much more fun to ride than my yz450. Thanks again. BTW - i am looking for a used wheel that I can put a paddle tire on. I was told by Halls that any wheel off of a 2001-2012 WR250/300 as well as 2001-2008 125 will also work. Anyone have a wheel with spokes/hub etc they want to sell? Thanks. you can text me at 208 339 three two nine five.

40:1 on Ipone. No spooge or smoke. Smells nice too!