"By Haynes, this Clymer motorcycle repair manual is written specifically for the do-it-yourself enthusiast. From basic maintenance to troubleshooting to complete overhaul, Clymer manuals provide the information you need. The most important tool in your tool box may be your. Includes color wiring diagrams. For GL1500 Standard (1988-1990), GL1500SE SE(1990-1992), GL1500A Aspencade (1991-1992), GL1500I Interstate (1991-1992). Single."