1993 Yamaha YFM80D Badger Supplementary Service Manual, Page 101Get this manual

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INSPECTION AND REPAIR
To achieve uniform valve seat width of 1.0

El Valve seat is too narrow and right up near valve margin
Valve seat cutter set

Desired result T

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