Bombardier SeaDoo 1997 factory shop manual, Page 171Get this manual
Section 07 ELECTRICAL SYSTEM Sub-Section 02 (IGNITION SYSTEM)
Fouling
Fouling of the spark plug is indicated by irregular running of the engine, decreased engine speed due to misfiring, reduced performance, and increased fuel consumptionThis is due to loss of compressionOther possible causes are: prolonged idling, or running on too rich mixture due to faulty carburetor adjustment or incorrect fuelThe plug face of fouled spark plug has either dry coating of soot or an oily, glossy coating given by an excess either of oil or of oil with sootSuch coatings form conductive connection between the center electrode and ground
2Apply 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 socket1 2
Spark Plug Analysis
A00E0BA
1Proper socket 2Improper socket
Spark Plug ChartA00E0AA