Fillpipe Restrictor: Description and Operation
Construction
The fuel tank filler pipe consists of the restructure, which is a narrow opening in the fuel tank filler pipe covered by a spring steel trap door.
^ The smaller non-leaded fuel nozzle will fit through the narrow opening and push the trap door aside, allowing normal filling. Leaded fuel nozzles will not fit through the narrow opening.
^ The restricted fuel filler is manufactured as an assembly. and must be serviced by removal and replacement with a new fuel tank filler pipe.
^ Fuel tank filler pipes are not to be modified in any way.