Finally able to remove the speedometer cable retaining screw for the speedometer drive gear housing. Let it soak with Kroil oil and purchase left hand drill bits.
Now that I removed the cable, does the housing of the speedometer drive gear able to be opened to service the speedo gear ? The speedo gear works fine before I pulled everything apart ( replaced tires and polished fork tubes ).
The drive gear doesn't appear to leak any oil if there is a seal where the square tab meets the speedometer cable. That tab moves freely which I assume turns the speedo gear. The speedo housing does appear to have a small set screw on top of the casting at the end where the cable goes through, so thought that may be removable to add oil or service ?
Any thoughts on this subject before to put everything back together.
And another question, how does this speedometer drive gear work ? There is a steel bushing in the center of it ( appears to pressed in ) where the axle runs thru, but it doesn't turn. Only the square tab inside the housing that engages the cable does. Worked before but was just curious how it worked ?
