Thanks for the info!
from what I understand from a service manual...the U4 was on a &quot;standard&quot; and the Bosch was on &quot;row crop&quot;.
They say in there that Bosch can be switched to U4 but there was added expence with switching mags from 1 to another...
Now if I can figure which way the lever goes to advance and retard!
I think I can figure it out though.
This tractor was baught new by my grandad and we used it till 83.
In 93-my grandad and I &quot;tinkered&quot; with it and got it runnin and we parked it in the shed.
A lot of memories and farming heritage with the &quot;old&quot; equipment.
I have been trying to find a place that I can get items like points/condenser, etc.

I have plans to have something I can pass to my son...and someday, grand kids...