2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 123Get this manual
Engine Mechanical: Install the oil pump driven gear (4) as shown in the figure 1D-47
Tighten the oil pump drive gear bolt to the specified torque with the special toolTightening torque Oil pump drive gear bolt: 80 Nm (8.0 kgf-m, 58.0 lb-ft)
Special tool (A): 0993040113 (Rotor holder)
I827H1140167-01
"A": Crankcase side