Put the bike on the sidestand. Fluid warm.
Drain the old fluid from the bolt under the Derby Cover.
When the fluid stops draining tilt bike straight up for a minute to get any fluid sitting in the corners.
Check the O ring and replace if needed, then apply a little permatex sealer on threads and screw in the plug to proper torque.
Remove the 5 screws from the Derby Cover and fill the primary with 38 US oz of your choice of fluid. (I use Formula Plus or Spectro)
I fill it with a funnel that has a 15" piece of clear tube on the end and pinch the end of the hose in the bottom of the opening that has a bit of a larger opening.
Check the gasket on the cover and replace if needed.
Re install the 5 screws by hand starting them then tighten in sequence as shown in book- 12, 7, 5, 10 and 2 o'clock to proper torque.
If you put 38 oz in while on the jiffy stand it shouldn't leak out, you'll just see the fluid under the opening .
Good luck.
