1978 Johnson 4HP outboards Service Repair Manual P/N JM-7803, Page 10Get this manual

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SPECIFICATIONS Models 4W78 Weedless gearease, standard Iength 4R78 Standard gearease, standard Iength 4RL78 Standard gearease, long shaft

Piston displaeement Piston ring sets (2 standard

• • 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