Harley Davidson Sportster Fuse Box Information | Hdforums Harley Davidson Sportster: Fuse Box Information. The fuse box contains the protection your Sportster's electrical system needs to prevent shorts from becoming fires. Fuses purposely serve as the weak link in the circuit, but sometime just blow randomly. Always start at the fuse box when your Sportster experiences an electrical problem. SOLVED: Show me fuse box sportster 2006 harley - Fixya Apr 09, 20122008 Harley Davidson Sportster 1200 fuse box location Hi, Lainey for this scenario you will need your service manual, parts fiche, and owners manual if you can not find the best tool you ever bought for your Harley, despair not, for a mere zero $0 you can download another one.