Tech stuff
There area number of different permutations and versions of the BME "100" throughout it's development, starting with a 2-bearing 5.8 and the last version being the current 102cc "Evo". Weight is currently about 4.37 lbs and performance is quoted in the 6600-6650 range with a menz 26-10, depending on air quality. That equates to about 38-40 lbs of thrust, and the 26-10 mejzlik or AM props are very good alternatives tot he Menz. The long awaited "Xtreme" is due out very soon, displacing 110 cc's with new cylinders cast especially for the engines, and will be able to easily swing a 28" prop.
As for oil and gas, break-in with any good 50:1 ration ASHLESS 2-stroke oil for about 5-10 gallons, then switch to either 50:1 or 100:1 Amsoil synthetic for best results. The gas shoud be in the 89 Octane range.