2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 108Get this manual

Quality of the image is intentionally reduced!

Cylinder block

Checking the piston ring grooves
1 Measure the piston ring groovesReplace the piston if out of specification

S63P5720

Piston ring groove: To

• • 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