Gentlemen, I changed mine a few thousand miles ago. Filled it to the level plug, bike upright.
Last weekend, I had the saddlebag off, for roadside shock adjustment. I accidentally touched the drive. And then again TOO HOT to hold my hand on, (lifelong fabricator/mechanic).
When I got home, I drained the fluid into a measuring beaker.
THREE OUNCES CAME OUT.
WTF?!?!?
The listed capacity is 5.7 oz.
I have had several shaft drive bikes since 1977.
Always done my own repairs & maintenance, since I'm a mechanic.
To get 5.7 oz. into the final drive, I had to:
1) park it slightly nose DOWN a incline, chock the wheel.
2) lean the bike 20 degrees to the right.
3) then, & only then could the requisite amount of lube be added.
Could someone please make the slack-jawed doofus level engineering stop? I was a motorcycle enthusiast around the FIRST TIME Triumph went out of business. Have they learned NOTHING?!?!
You are warned.