4. LUBRICATION SYSTEM ATV 150/125
Outer Rotor Inner Rotor
ASSEMBLY
Install the outer rotor, inner rotor and pump
shaft into the pump body.
Insert the pump shaft by aligning the flat
on the shaft with the flat in the inner
rotor.
Install the dowel pin.
Install the pump cover by aligning the hole
in the cover with the dowel pin.
Dowel Pin Pump Cover
Screw
Tighten the screw to secure the pump cover.
Make sure that the pump shaft rotates freely
without binding.
Arrow Oil Pump
INSTALLATION
Install the oil pump into the crankcase.
Install the oil pump with the arrow mark
on the pump body facing up and fill the
oil pump with engine oil before
installation.
After the oil pump is installed, tighten the
two mounting bolts.
Bolts
4-6