2002 Bombardier Quest 650XT Service Manual, Page 59Get this manual
Section 03 ENGINE Subsection 03 (LEAK TEST)
LEAK TEST
VERIFICATION
Before performing the cylinder leak test, verify the following: clamp(s) tightness radiator and hoses oily contamination on leak indicator hole (speed sensor area) means damaged oil seal on water pump shaft coolant out of leak indicator hole means damaged rotary seal on water pump shaft (refer to COOLING SYSTEM) coolant escaping from water pump housing means damaged gasket(s) andor loosened screws (refer to COOLING SYSTEM)NOTE: For all the checkpoints mentioned above see the appropriate engine section to diagnose and repair the engine1 2
R610motr03A
1Ignition coil 2Spark plug
Remove valve cover2 1
LEAK TEST PROCEDURE PREPARATION AND TEST
NOTE: The following procedures should be done with cold engine