KYMCO MXU 500 - Service Information

4. LUBRICATION SYSTEM
4-2
MXU 500
SERVICE INFORMATION
GENERAL INSTRUCTIONS
xThe oil pump service may be done with the engine installed in the frame.
xWhen removing and installing the oil pump use care not to allow dust or dirt to enter the engine.
xIf any portion of the oil pump is worn beyond the specified service limits, replace the oil pump as
an assembly.
xAfter the engine has been installed check that there are no oil leaks and that oil pressure is
correct.
SPECIFICATIONS Unit: mm (in)
ITEM STANDARD SERVICE LIMIT
At draining 3 liter (2.64 lmp qt, 3.18 Us qt) 
At disassembly 3.6 liter (3.17 lmp qt, 3.82 Us qt) 
En
g
ine oil
capacity
At draining and oil
filter cartridge change
3.2 liter (2.82 lmp qt, 3.39 Us qt) 
Recommended engine oil
KYMCO 4-stroke oil or equivalent
motor oil
API service classification SJ
Viscosity: SAE 5W-50

Tip clearance 0.15 (0.006) max 0.2 (0.008)
Body clearance 0.15 – 0.2 (0.006 – 0.008) 0.25 (0.01)
Oil pump rotor
Side clearance 0.04 – 0.09 (0.0016 – 0.0036) 0.12 (0.0048)
TORQUE VALUES
Oil pump screw 0.3 kgf-m (3 N-m, 2 lbf-ft)
Oil strainer screen cap 1.5 kgf-m (15 N-m, 11 lbf-ft) Apply oil to the threads and seating surface.
Oil filter cartridge 1 kgf-m (10 N-m, 7 lbf-ft) Apply oil to the threads and seating surface.
Oil pipe bolt 3.5 kgf-m (35 N-m, 25.2 lbf•ft)
Apply oil to the threads and seating surface.
Special tool:
Oil seal & bearing drive A120E00014