Signal issues

In many cases, when a bulb is burned out, the signals come on but there isn't enough current draw to operate the flasher. I would think that a model that has fender mounted signals would have enough draw to operate the flasher even if the indicator bulbs didn't have a ground or were changed to LED, whatever. I dont know for sure. I know the original turn indicators, illumination bulbs, and high beam indicator, used the same chassis ground path. Through board to housing mounting screws and panel to dash mounting screws. Bottom line, you may be missing a ground or you may need the type flashers used with LEDs.