Table of Contents
This is an old revision of the document!
IH: Carburetor, Intake Manifold & Exhaust Systems - Sub-01B
Bendix Carb Identification
There were three Bendix carburetors, designated in the parts catalogs, that were installed on Sportsters.
36mm and 38mm Comparison
Side by side comparison of 36mm and 38mm Bendix carbs.
Aside from the venturi size, the other main difference that might affect the way it runs is the number of secondary idle discharge ports.
These are the holes that get uncovered by the throttle plate at part throttle settings.
The 38mm has 3 (in addition to the idle adjustment screw hole).
The 36 has 2 (in addition to the idle adjustment screw hole).
The air cleaner screw bosses on the 36mm are smaller.
Main Jets
1)
1972,1973 HD Sportster Parts Catalog Supplements (99451-72), (99451-73)
2)
1973, 1974 HD Sportster Parts Catalog Supplements (99451-73) (99451-74)
3)
1975 HD Sportster Parts Catalog Supplement (99451-75)
4)
1976 HD Sportster Parts Catalog Supplement (99451-76)
5)
1971-1984 HD FX Parts Catalog pg 35
9)
photo by Popgadget of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071986