No trick....... undo the 2 large side bolts and 2 vertical seat bolts that secure the seat to the subframe and also remove the 2 bolts that secure the rear fairing to the subframe.
Lift the tank/seat/rear-fairing combination upward. It will pivot on the front fuel tank mounts. Lift it about 3" at the rear of the tank and support it there with a rolled up towel.
Take your 17mm wrench and undo the single central bolt that secures the seat to the fuel tank. Remove the seat/rear-fairing combination. Leave the tank supported on the towel.
Remove the 4 4mm bolts that secure the seat to the fairing.
Substitute the Sargent unit for the OEM one and reverse these steps.
Lift the tank/seat/rear-fairing combination upward. It will pivot on the front fuel tank mounts. Lift it about 3" at the rear of the tank and support it there with a rolled up towel.
Take your 17mm wrench and undo the single central bolt that secures the seat to the fuel tank. Remove the seat/rear-fairing combination. Leave the tank supported on the towel.
Remove the 4 4mm bolts that secure the seat to the fairing.
Substitute the Sargent unit for the OEM one and reverse these steps.