Suzuki drz 400E Service Manual page 60

3-18 ENGINE
Remove the oil pump idle gear 1 and oil pump driven
gear 2.
1
2
Remove the pin 3 and oil pump assembly.
A
Do not remove the circrip A, before separating the
crankase to prevent the oil pump idle gear shaft from
dropping into the crankcase.
3
Remove the gearshift shaft 4 by removing the circlip 5.
Remove the gearshift arm stopper 6. 6
5
4
Remove the gearshift pawl lifter 7 and gearshift cam driven
gear 8.
7
8
Remove the gearshift cam stopper arm.