Yamaha Motor 20C Manuel D'entretien page 242

ELEC
REMOVAL
E
5) Remove the woodruff key from the crankshaft
keyway using of a screwdriver.
NOTE:
Take special care not to damage the surface of the
crankshaft. When removing the flywheel magneto,
lift it up while tilting it slightly. Do not allow the mag-
neto to contact the timing plate.
8-4