Mr. Gasket Air Cleaner Spacer and Adapter Kit eliminates air cleaner fit problems and includes spacers and adapters of different heights that fit between the carburetor neck flange and the air filter assembly to allow the amount of clearance you need for your application. Kit includes two adapters for 5-1/8 inch carb necks, one adapter for 3 inch carb necks and one adapter for 2-5/8 inch carb necks. 1/2 inch and 1 inch spacers can be combined. Also includes two air cleaner risers that combine for three height adjustments to help space the air cleaner upward to clear throttle or transmission linkage.