For turning the engine over using the pinion gear nut

You can use a 15/16” wrench or deep well socket to turn the engine over using the pinion gear nut. 6)
93-Present Pinion Gear Nut (7916A) 7)

To remove or install the pinion gear nut
You'll need to lock the pinion gear from moving while turning the nut.

• It's very important to hold the crank on the pinion side with an appropriate pinion locking tool whenever you take the pinion nut off or put it on.If you hold the crank still from the primary side (or by putting the bike in gear and holding the brake), the twisting torque applied to the pinion nut gets transmitted through the crank, from one side to the other. The crank pin is not designed to resist much twisting force. You'll risk scissoring the crankshaft (knocking the crank out of true), which requires a full tear-down to fix. ⁸⁾ So this is one of those situations where it's best to use the proper tool. ⁹⁾

The Grindlock Pinion Shaft Locking Tool engages for the full depth of the pinion gear for max. strength. 10) Due to a change in the pinion gear in 2000, there are 2 different versions of this tool: 1. (91-99) year models & 2. (2000 to present) year models 11)
Grindlock Tool (designed by XLFORUM member, “Grind”). 12) 13)

Pinion lock made out of scrap steel 14)