Iron Sportster bill of material


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Shifter seal

In 1977 Harley redesigned the cases so the bike would shift on the left. 1975 and 76 bikes did this with a complex linkage on engines that shifted on the right. The change was due to USA federal law that required all motorcycles to shift like Japanese bikes.

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 Sportster_Engine_Primary_Primary-cover_25424-81_shifter-seal_1977-1984 Sportster_Engine_Primary_Primary-cover_25424-81_shifter-seal_1977-1984 Sportster_Engine_Primary_Primary-cover_25424-81_shifter-seal_1977-1984 CAD
Blueprint
Seal, shifter shaft. Problems: Seal can get damaged by spines as you install the cover. Image credit: Jan Willem Boon - parts for your Harley-Davidson - database.