Polaris 380 rpm problem


New member
May 8, 2018
I have a polaris 380 that is moving to slowly. Hose filter is clear, pumps working fine etc... when testing rpm the wheels spin very slowly(around 20 RPM) if the unit is held in an upright position. However if i turn it on its side the wheels spin much faster(around 32 RPM).

Anyone ever experienced this? Any suggestions before I start taking it apart?