Proper procedure for bench testing igniter.

[drp259]

Does anyone know the proper way to bench test the igniter and lighting coil on a Yamaha G1 while the engine is on the bench? Clutch is off for seal replacement, flywheel and stator is real dirty. Just want to make sure all works before reassembly. Have never heard it run but all signs point to the crank seals, mainly the leak at the PTO/clutch side.