4. LUBRICATION SYSTEM Mongoose/KXR 90/50 Oil Pump Remove the two oil pump mounting bolts and the oil pump. Bolts DISASSEMBLY Oil Pump Body Remove the screw and disassemble the oil pump. Screws Outer Rotor INSPECTION Measure the pump body-to-outer rotor clearance. Service Limit: 0.25mm Oil Pump Body 4-6