2004 Bombardier Rally 200 Series Shop Manual, Page 216Get this manual
Section 05 ELECTRICAL Subsection 05 (IGNITION SYSTEM)
The "hot" type plug has longer insulator nose and transfers heat more slowly away from its firing endIt runs hotter and burns off combustion deposits which might tend to foul the plug during prolonged idle or low speed operation
SPARK PLUG ANALYSIS
A00E0AA
TYPICAL 1Overheated (light grey, white) 2Normal (light brown, brown) 3Fouled (black, wet or dry, dark deposits, grey, melted coating)
A00E09A