4
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LUBRICATION SYSTEM
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SERVICE INFORMATION (Mongoose/KXR 90)-------------------- 4- 3
SERVICE INFORMATION (Mongoose/KXR 50)-------------------- 4- 4
ENGINE OIL/OIL FILTER (Mongoose/KXR 90)-------------------- 4- 5
OIL PUMP BLEEDING (Mongoose/KXR 50)------------------------ 4- 9
OIL TANK (Mongoose/KXR 50)--------------------------------------- 4-10
OIL PUMP (Mongoose/KXR 50)--------------------------------------- 4-11
OIL FILTER CLEANING (Mongoose/KXR 50) --------------------- 4-12
LUBRICATION SYSTEM (Mongoose/KXR 90)
LUBRICATION SYSTEM (Mongoose/KXR 50)
SERVICE INFORMATION (Mongoose/KXR 90)
GENERAL INSTRUCTIONS
• The maintenance of lubrication system can be performed with the engine installed in the frame.
• Use care when removing and installing the oil pump not to allow dust and foreign matters to enter
the engine and oil line.
• Do not attempt to disassemble the oil pump. The oil pump must be replaced as a set when it
reaches its service limit.
• After the oil pump is installed, check each part for oil leaks.
SPECIFICATIONS
Inner rotor-to-outer rotor clearance
Outer rotor-to-pump body clearance
Rotor end-to-pump body clearance
TROUBLESHOOTING
Oil level too low Poor lubrication pressure
• Natural oil consumption • Oil level too low
• Oil leaks • Clogged oil filter or oil passages
• Worn or poorly installed piston rings • Not use the specified oil
• Worn valve guide or seal