hi! i'm from
pr and i have this engine, but the cylinder exaust is looking upwars to the carb. this engine only ran 2 tank and in the first tank it stop radically, i have to losen the bolts to liberate the propeller. when i tighten the bolts again and the propeller losen freely i run the second tank and run very well.(i run the tanks in a bench). do i turn the cylinder exaust just 1/2 away to have the exaust like is in the first picture? and what kind of muffler are that? thank for the help. i will try to take a picture of my engine the next time.