2001 Yamaha YFM660 Raptor Factory Service Manual, Page 288Get this manual

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IGNITION SYSTEM Spark plug gap: 0.80.9 mm (0.0310.035 in) CORRECT For USA and CDN 4.Ignition spark gap
MEETS SPECIFICATION

The ignition system is not faulty
For Europe 4.Ignit

• • 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