1984 Ski-Doo Shop Manual, Page 294Get this manual

Quality of the image is intentionally reduced!

SECTION 04 ELECTRICAL SYSTEM SUB-SECTION 03 (SPARK PLUGS)
Overheated (light grey)

Normal (brownish)

Fouled (black)

The plug face (and piston dome) reveals

• • TGB
  • Arctic Cat
  • Bombardier
  • Can Am
  • Honda
  • John Deer
  • Kawasaki
  • Polaris
  • Suzuki
  • Yamaha
• • Kawasaki
• • Chrysler
  • Honda
  • Johnson Evinrude
  • Mercury
  • Suzuki
  • Tohatsu
  • Yamaha
• • Honda
  • Polaris
  • Sea Doo
  • Yamaha
• • Arctic Cat
  • Polaris
  • Ski Doo
  • Yamaha
• • Chrysler
  • Mercury
  • OMC
  • Volvo