With the tops off, spray carb cleaner into the fuel inlet in the top, lay the top on edge to do this. With the inlet (&filter) submerged in cleaner, after a few minutes, GENTLY jiggle the float up and down, and hopefully the needle will be freed. If so cleaner will run out.
If hat fails, you will have to remove the float axle pin, and then unscrew the needle and seat (10 mm). Soak that assembly overnight in carb cleaner & or lacquer thinner. Periodically try to turn the needle in it's seat. It will come free and fall out. Clean the assembly with carb cleaner and reassemble.
Illinois SNO Alfa Chapter Director
Illinois SNO Ferrari Chapter Director
and sometimes, CONFUSED AND INCORRECT, but Larry helps me out.
Illinois Chapter Director AND Charter Member of THE CONFUSED AND INCORRECT