Can I run a tach? Matt May 23, 2018 15:15 Follow Yes the green wire in the 2000i loom is a dedicated one (1) pulse per revolution tach output signal. Related articles What is the difference between Single Fire and Dual Fire? What are the benefits? Why does my Dyna S spark continuously when I am charging the battery? Will the TC88-3 and DSPT-1 (Sportster) module interchange? Comments 0 comments Please sign in to leave a comment.