1989 Ski-Doo Repair Manual, Page 375Get this manual

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Section 04 ELECTRICAL SYSTEM Sub-section 03 (SPARK PLUGS)
The heat range identification system isHigh number Low number hot plug cold plug

1989 REFERENCE CHART
Bosch spark plu

• • 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