I have the vapor, it stays lit all the time as long as there is RPM or speedo input and the unit is hardwired into a 12V power source. it also has a backup battery, so it will work without a power source, but won't light up.
Custom Fighters - Custom Streetfighter Motorcycle Forum
A forum community dedicated to Custom Streetfighter Motorcycle owners and enthusiasts. Come join the discussion about performance, modifications, builds, classifieds, troubleshooting, maintenance, and more!