This manual covers the 1998 XLH Sportster motorcycle, a model known for its iconic Evolution V-Twin engine and enduring legacy in the cruiser and performance motorcycle segments. Available in 883cc and 1200cc displacements, the Sportster line offers a distinctive V-twin rumble and classic styling, making it a popular choice for both custom enthusiasts and riders seeking a spirited riding experience. This manual provides comprehensive coverage for various engine variants including the XLH883, XLH1200, XLH883 Hugger, XL1200C Custom, and XL1200S Sport, ensuring a thorough resource for owners and technicians. The purpose of this Service and Repair Manual is to provide detailed guidance for the maintenance, troubleshooting, and repair of the 1998 XLH Sportster. It encompasses a wide range of topics, including engine tear-down and rebuild procedures, fuel system servicing, electrical system diagnostics, transmission and drive train maintenance, and chassis component repairs. With hundreds of photos, detailed illustrations, wiring schematics, and critical specifications, this manual is an indispensable tool for do-it-yourself enthusiasts and professional mechanics alike, facilitating the proper upkeep and repair of these legendary motorcycles.