I was wondering if anyone has tried or knows how involved a project might get to convert a stock needle display tach to a LED tach. My electrical skills are non-existent, and when i look at diagrams i glaze over. i look at schematics, and its over. scrambled eggs for brains. Add to that, i'm not quite sure how a tach really works. i have an '01 ninja 250 to work with, and the tach is one that reads off the ignition coil. Not even sure how that works. i'm thinking either one of two ways. either the tach translates a number of pulses from the coil, or its based on the signal strength. Not even sure that makes any sense, but i tried. if you made it this far, then you understand how much of a complete electrotard that i am. So what i'd like to do is make a series of LEDs that light up progressively as the rpm's rise, maybe one LED per 1k rpms. just so i have a rough idea where i am at. sure, i could buy a tach, but where's the fun in that? this way, i get to save some money, and learn something new in the process.