hi, rob...you are soo gonna luv the tanaka...it's 2-stroke rocket-science.
i'm at completely sea-level. i have no idea where the carby was born, it's a basic 12mm walbro w/high-speed adjustment.
idle mixture inside barrel, set to just-rich.
high-speed mixture is very touchy...no-go on anything over the line towards lean, great lowend-pull when rich, but doggone it i can't get any rpm's. when it's freewheeling it just screams, so i know it can do it.
a brand-new e3 spark plug looks very nice, always dry...it's just getting tan along the index-line.
so i keep going rich, it keeps burning it, but i ain't gettin' any speed.