Model #21759462 CRAFTSMAN Boat Motor Gas

  • Power Head Assembly
    3 Results
  • Column Assembly
    3 Results
  • Gear Housing Assembly
    3 Results
  • Engine Assembly
    3 Results
  • Magneto Assembly
    3 Results
  • Carburetor Assembly
    3 Results
  • Rewind Starter Assembly
    3 Results
  • Optional Remote Gasoline Tank Assembly
    3 Results
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Question and Answers


What do I need to do 21759462 Craftsman Sears 4.5 hp outboard motor


Thank You for choosing Sears Glad to help out. Im looking at your model number 21759462 and it is Aug 1987 and the information I found online shows "24-1, although with the newer 2-stroke synthetics you could run 32-1. start with the 24-1 ratio and do a plug check after running at top end for a period of time the plugs should have a chocolate brown color. i recommend having a spare plug just in case it fouls out. i know that the later models can be run at 40-1, even at 50-1 in the newer models mid to late 80's." I hope this information helps you.  If you have further questions please resubmit your question for further information.


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Sherman_G_Wallace -
Sears Technician
July 23, 2014

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