2003 Polaris MSX 140 Personal Watercraft Service Manual, Page 33Get this manual
Maintenance Fuel SystemContinued Air Intake
1Remove nuts and washers, and remove each air intakeCover carburetor with clean shop towel to prevent foreign material from entering2Clean element with high flash point solvent, followed by hot soapy water3Rinse in clear water and dry thoroughly using low pressure airWARNING