Just joined USMB. Son and I have made many mods to the '86 GL 2.2L 4WD, figured I'd start throwing some of the stuff out there, as well as see what I could learn from others. Hope this is the right post!
One of the mods was replacing some of the turn indicators with LED modules (custom front tube bumper). This contributed to the changing of the blinker timing for the turn signal. It blinked so fast it was annoying, and lights were on barely long enough to be visible.
Just got through reverse engineering the logic on the PCB to determine where/how to mod it to change the timing. After all that work, I decided to just override the circuit and add a standard 2-pin flasher module. Should take about 2 hours from start to finish, depending upon your mechanic and wiring/soldering skills. I have created a schematic showing circuit and instructions on where/how to make mods. There are some unknown part types/values on the schematic - maybe someone out there has more detailed info on the parts so I can update schematic?
I'll happily send a .pdf to anyone that would like the info.