An In-Depth Look at the 1988 Sportster Wiring Diagram. The 1988 Harley Davidson Sportster provides motorcycle enthusiasts with an incredibly powerful and reliable vehicle to take on the open roads. While highly sought after and respected among modern motorcycle riders, understanding all aspects of this machine can be a bit daunting.. cover; wiring diagram book contents, 1986 - 1990; 1986 - 1990 xlh all models; late 1985 & 1986 fxwg, fxst/c; 1986 1/2 flst; 1987 & 1988 fxst/c, fxsts; 1987 - 1988 flstc 5
1986-Present 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 style drawings.. Worked on wiring up the 1988 Sportster Project this weekend.. Big Twins, and anything else with two wheels. Currently working on restoring and preserving a 1988 Harley Davidson Sportster chopper. I also post information on other DIY projects I tinker on.. Here is a quick doodle I did on the garage whiteboard planning out my wiring diagram.