Continued-if you want to go the whole way,remove the brass screw(main jet with filter) where the fuel pipe goes,remove the white plastic cover which holds the float and needle(dont lose any parts)now you will see a white star shaped plastic part.take note how it all comes apart so you can clean the internals of the carby and re-install,it is rather basic and look after the "o"ring on the white cover where the fuel goes in.hope this helps a little...ken