2004 Polaris Sportsman 700 EFI ATV Service Manual, Page 68Get this manual
VALVE SEALING TEST
1Clean and dry the combustion chamber area (A)Refer to Page 3.23 for cleaning tips2Pour small amount of clean solvent onto the intake port and check for leakage around each intake valveThe valve seats should hold fluid with no seepage3Repeat for exhaust valves by pouring fluid into exhaust portA