Suzuki drz 400E Service Manual page 61

Remove the gearshift cam driven gear bolt.
Hold the generator rotor using the special tool (DR-Z400) or
a 26-mm offset wrench (DR-Z400E), and then remove the
balancer driven gear nut.
09930-44913: Rotor holder
Remove the washer, balancer driven gear, and key.
Hold the generator rotor using the special tool (DR-Z400) or
a 26-mm offset wrench (DR-Z400E), and then remove the
primary drive gear nut.
09930-44913: Rotor holder
Remove the washer, primary drive gear, pin, key, and bal-
ancer drive gear.
The primary drive gear nut has left-hand threads.
Hold the generator rotor using the special tool (DR-Z400) or
a 26-mm offset wrench (DR-Z400E), and then remove the
generator rotor nut.
09930-44913: Rotor holder
Remove the generator rotor using the special tool.
09930-31921: Rotor remover
NOTE:
Do not use the rotor remover attachment to remove the gen-
erator rotor, since it will not fit on the end of the crankshaft.
Temporarily install the generator rotor nut to the crankshaft,
and then remove the generator rotor using the special tool.
Do not hit the generator rotor with a hammer, other-
wise the rotor may be damaged.
ENGINE 3-19