2009-2010 Polaris RZR Factory Service Manual, Page 31Get this manual
MAINTENANCE 4Inspect the air filter element and replace if necessaryDo not attempt to clean the air filter with anything other that low pressure compressed airInstallation 12Clean the air box thoroughlyPlace the filter ring over the end of the filter and install the filter into the air boxBe sure the filter fits tightly in the air box
NOTE: If the filter has been soaked with fuel or oil it must be replaced