2004 Ski-Doo REV Series Factory Service Manual, Page 274Get this manual
Section 07 ELECTRICAL SYSTEM Subsection 02 (SPARK PLUGS)
SPARK PLUGS
DISASSEMBLY
First unscrew the spark plug turnClean the spark plug and cylinder head with pressurized air, then completely unscrew
SPARK PLUG TIGHTENING TORQUE
MODEL All models SPARK PLUGS NGK TORQUE Nm (lbfft) 27 (20)
WARNING
Whenever using compressed air, always wear protective eye wear