The main jet on a uk bike is 130, try the sunlight test, use a nylon bristle pulled from a brush to clean out as well as carb cleaner spray. Seems like youre on the right track now but now the problem is the main jet circuit. Come to think of it if the pilot jet was blocked its likely that the main jet may be blocked and its possible that the needle jet may also need cleaning, if you unscrew the needle jet you will see a series of tiny holes along its length in the side of the tube, may as well have a look at these too.
...Paul