2004 Skidoo ZX Series Service Manual, Page 444Get this manual
Section 09 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 except 4-TEC 4-TEC SPARK PLUGS NGK NGK DCPR8E TORQUE 27 Nm 20 lbfft) 17 Nm 12 lbfft)
WARNING
Whenever using compressed air, always wear protective eye wear