I am new to the forum and new to a 86 FA50 I picked up as a project with my boys. I have cleaned out the carb with air and Chem-tool cleaner. It now will start most of the time and run from 1 second to several minutes depending on who knows what! My compression is about 75 PSI after 4-5 kicks. I have read the forum about the nipple on the side by the mix adj screws. I had to plug mine with a short piece of hose with a screw in it as fuel would run out of it. Also does the hose on top of the shut off valve go to the right side of the carb near the choke cable. This bike was missing the hose. Any help will be great.