Were you successful with your wiring search for the switch? I am unable to find the same info to verify this 1971 r75/5 is correct.

A discovery regarding this mystery hole. It is a timing case cover tap drill break through from the front done during manufacture. Minor flaw, and cer...

This might help. On this /5 short wheel base model swingarm assembly, which is out of the frame,with the driveshaft pulled back all the way, the u joi...

If the 4 u-joint bolts have lock washers, it might be a good idea to replace the bolts with the available shorter ones and chuck the lockwashers as th...

I for one am happy and grateful for joining and being accepted in the Airheads club. Being an old newbie with this 71 r75/5 project bike, this forum h...

@wobbly Thank you for your input. The model year is 1971 r75/5.

I think the best thing to do is get the correct new seal first then figure out how it goes in by looking at its profile.

@8053 Thanks for sharing this info. I know from research there were a few different hub configurations which evolved through those years and luckily t...

@8053 Thank you for your input. I did not see any access to the felt seal from the inside of the hub when the bearing stack was removed for servicing....

@wobbly Thanks for your input.

@wobbly thank you. I will take careful measurements of the matching tapers and guestimate the distance to set the collars trying to factor the rubber ...

@wobbly Thanks for your insight. After cleaning up the tubes, I have discovered they are slightly smaller in diameter at the ends where the seal fits ...

@wobbly I am curious why you pull rather than push when you lapp the valve to the seat.