Mercury 30 Jet/40 4 Cyl, 2-Stroke Outboard Motor Service Manual


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Covers: Mercury Marine 30 Jet/40 4 cylinder, 2-stroke Outboards

  • United States serial no. 0C159200 and Above
  • Belgium serial no. 9570305 and Above
  • Canada serial no. 0A748269 and Above
  • 1997-2005 model years

Pages: 532
: PDF files (zipped)
File size: 14mb
Compatibility: Windows/Mac computers

This PDF service manual contains all the necessary instructions needed to service the 1997-2005 Mercury 30 Jet/40 4 Cyl, 2-Stroke Outboard Motor from top to bottom according to the manufacturer’s specifications. This is the same manual professional technicians use to diagnose and repair the outboard motor. Whether it’s routine maintenance, such as tune-ups and fuel system service, or more extensive repairs involving engine overhaul, this manual provides the most accurate information to perform the job.


General Information

Electrical & Ignition

  • Ignition System
  • Battery, Charging System & Starting System
  • Timing, Synchronizing & Adjustment
  • Wiring Diagrams

Fuel System & Carburetion



  • Clamp/Swivel Bracket & Drive Shaft Housing
  • Power Trim
  • Manual Tilt System

Lower Unit

  • Lower Unit
  • Jet Drive

Outboard Motor Installation/Attachments

  • Outboard Motor Installation/Attachments
  • Tiller Handle and Co-Pilot
  • Rewind Starter

Oil Injection System



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