Bombardier SeaDoo 2001 factory shop manual, Page 72Get this manual
Section 04 ENGINE Subsection 02 (LEAK TEST)
Activate pump and pressurize engine cooling system to 34 kPa (5 PSI)Wait minutes and check if pressure drops; if so, verify all testing components If kit components are not leaking and pressure drops, verify all external jointed surfaces, temperature sensor and the O-ring between the spark plug area and the engine cylinder head coverIf none of these components are leaking, there is an internal leak and it can be detected with Bottom End and Top End testing
NOTE: Engines with the RAVE system, the boot (carburetor-equipped engines) and O-ring can be checked for leakage with the valve in placeSimply remove the cover to expose the partsMake sure the spark plugs (and the airfuel rail on DI engines) are installed and tightenedBlock pulse hose (carburetor-equipped engines) using hose pincherNOTE: Do not block the rotary valve shaft hoses (if so equipped)Install pump to the exhaust plate fittingBottom End and Top End