2002-2003 Bombardier Baja DS650 Service Manual, Page 143Get this manual
Section 05 ELECTRICAL Subsection 05 (IGNITION SYSTEM)
SPARK PLUG INSTALLATION
CAUTION: Always use the recommended spark plugPrior to installation make sure that contact surfaces of the cylinder head and spark plug are free of grime1Using wire feeler gauge, set electrode gap according to the following chart2Apply anti-seize lubricant over the spark plug threads to prevent possible seizure3Hand screw spark plug into cylinder head and tighten with torque wrench and proper socket