Table of Contents
This is an old revision of the document!
IH: Electrical System
Ironhead - Stock Wiring Schematic Drawings (created with reference to the OEM manual)
1959-1985 Sportster Main Wiring Diagrams
The drawings below have been created using the factory schematic drawings from the FSMs as reference. They are available here but are not intended to replace the factory drawings. Some parts symbols are generic, may not represent the actual period parts and have been spread out for clarity from the originals. However, the parts are labeled. The drawings are not to scale and parts and wiring are positioned on the drawings for clarity.
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1959-1962 Sportster CH
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1959-1964 Sportster H
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1963-1964 Sportster CH
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1965 Sportster CH
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1965-1966 Sportster H
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1966 Sportster CH
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1967 Sportster H
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1967-E1969 Sportster CH
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1968-E1969 Sportster H
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L1969 Sportster H
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L1969 Sportster CH
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1970-1971 Sportster XLH
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1970-1971 Sportster XLCH
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1972 Sportster XLH - Standard Seat
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1972 Sportster XLH - Low Seat
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1972 Sportster XLCH - Standard Seat
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1972 Sportster XLCH - Low Seat
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1973-1974 Sportster XL
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1973-1974 Sportster XLCH
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1975-1976 Sportster XL
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1975-1976 Sportster XLCH
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1977 Sportster XL
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1977 Sportster XLCH
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1978 Sportster XL
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1978 Sportster XLCH
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1979 Sportster XLH/XLS
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1979 Sportster XLCH
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1980 Sportster XLH/XLS
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1981 Sportster XLH/XLS
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1982 Sportster XLH/XLS
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1983-E1984 Sportster XLH
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1983-E1984 Sportster XLS
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1983-E1984 Sportster XLX
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1983-1984 Sportster XR-1000
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L1984-1985 Sportster XLH
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L1984-1985 Sportster XLS
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L1984-1985 Sportster XLX
L1984-1985 Wiring Issue - Might Be Dangerous
Note: The L84-85 Wiring Diagrams show an improper connection from the Regulator to the Battery.
The wiring diagram shows an unsafe connection but we have not been able to determine if the actual bikes are wired wrongly that matches the diagrams. So the following information needs to be verified against the actual bike wiring.