4. LUBRICATION SYSTEM Mongoose/KXR 90/50 OIL PUMP INSTALLATION · Lubricate the O-ring with grease or engine oil before installation. · Make sure that the oil pump is inserted into the crankcase. · Apply molybdenum disulfide or grease to the pump pinion. Install the oil pump into the crankcase. Install the oil pump control cable plate. Connect the oil inlet line and oil outlet tube properly. Connect the oil pump control cable. Grease or Engine Oil Bleed air from the oil pump. (See page 4-9) · Connect the oil tube properly. · Bleed air from the oil pump after installation. · The oil tube clip (at the oil tank side) must be locked from inside of the oil tube joint. Clip OIL FILTER CLEANING (Mongoose/KXR 50) Disconnect the oil tube at the oil pump side and allow oil to drain into a clean container. Remove the tube clip at the oil tank side and disconnect the oil tube. Remove the oil filter. Oil Filter Clean the oil filter screen with compressed air. Install the oil filter in the reverse order of removal and fill the oil tank with specified oil up to the proper level. Bleed air from the oil pump and oil lines. · Connect the oil tubes securely. · Install the tube clip at the oil tank side and also install the clip to the lower oil tube that goes to the oil pump. · Check for oil leaks. Filter Screen 4-12