Bombardier SeaDoo 1992 factory shop manual, Page 168Get this manual
ELECTRICAL Sub-section 07 (SPARK PLUGS)
Section 07
SPARK PLUG INSTALLATION
Prior to installation make sure that contact surfaces of the cylinder head and spark plug are free of grime1Using wire feeler gauge, set electrode gap accordling to chart below2Apply antiseize lubricant (PIN 293 550 001) over the spark plug threads to prevent possible seizure3Hand screw spark plug into cylinder head and tighten with torque wrench and proper socketProper socket