1982 Ski-Doo Shop Manual, Page 271Get this manual

SECTION 04 ELECTRICAL SUB-SECTION 03 (SPARK PLUGS)
NGK SPARK PLUG TYPE

SPARK PLUG NUMBERING SYSTEM
Bombardier has introduced on some of the 1982 snowmobile models the NGK spark plug typeThe heat range identification system is: High number Low number cold plug hot plub

• ATV
• Jet Ski
• Outboard Motors
• Personal Watercraft
• Snowmobiles
• Stern Drives