FUJI 86cc Thrust???HELP!!!!
Here we go again. Why do you care about static thrust numbers? These numbers are not a good indicator of anything. They don't tell you how your plane will fly with that engine, and they won't help you rank engines. You could put a dozen different props on the Fuji and get a dozen different readings for static thrust. The biggest diameter prop with the lowest pitch (e.g 30x4) will give the highest static thrust readings, but that won't fly your plane very well.
To compare engines, just use the identical brand and size prop, and compare the rpm. The higher the rpm, the higher the power.....and useful thrust of the engine. For that size engine, I would look at rpm with a 26x10 prop.