26-04-2021, 01:37 PM
If it selects 3 & 4 without problems it seems to me that the fault lies in the 1st and second selector system. Has the guide bar got out of position? You may see something significant by removing the top of the gearbox. I have never come across it has a selector broken? My first move would be to rmove the gearbox top and check whether the 1/2 sector moves normally. A drift and mallet will normally move the selector when you don't have the lever in place. Stating the obvious I assume that it is the correct 2SYN box. It would be interesting to hear what you find.