Patent ID: 6796551
Filing Date: 2004-09-28
Classification: F02M,Y10S,Y10T

Abstract:
A tamper resistant mixture adjustment screw arrangement for a carburetor comprising:a) a carburetor body having at least one adjustment screw threaded therein and projecting therefrom for adjusting the air/fuel mixture in the carburetor, said adjustment screw having a threaded shank and a head, said head being defined by an undulant, uneven side surface capable of being engaged and mated by an adjusting tool having a complimentary undulant, uneven surface for initially adjusting the air/fuel mixture in the carburetor; and b) a blocking curb extending from said carburetor body to a level which at least substantially corresponds to a projecting extent of each said adjustment screw and being closely spaced to said head to prevent the screw from being turned by commonly available tools, but to permit said screw to be adjusted by said adjusting tool.