Suzuki drz 400E Service Manual page 117

FUEL AND LUBRICATION SYSTEM 4-11
First, remove the air valve mounting nut 1, and then re-
move the air valve mounting bolt 2 and air valve assembly
3. (DR-Z400)
1
2
3
Remove the throttle position sensor.
Remove the accelerating pump assembly.
Replace the removed O-ring with a new one to prevent
fuel leakage.
Remove the coasting richer pump assembly.
Replace the removed O-ring with a new one to prevent
fuel leakage.
Remove the starter plunger.
Remove the top cap.