Model #217586310 CRAFTSMAN Boat Motor Gas

  • Power Head Assembly
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  • Twist Grip Assembly
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  • Column Assembly
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  • Gear Housing Assembly
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  • Engine Assembly
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  • Carburetor Assembly
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  • Rewind Starter Assembly
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Question and Answers

Q:

Outboard feels like it's shifting in & out of gear / or cavition 217586310 Craftsman Sears 15.0 h.p. outboard motor

Q:

oil mixture for 2 stroke outboard motor 1975,

A:

Older boat motors can be fun to restore and may provide lots of use in future. I was able to locate the diagrams for this motor at Sears Parts Direct that may be of some help while you wait for the expert. I also added a web link that can be helpful for finding old motor manuals.

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Barbara H. -
February 17, 2012
A:

Thank you for your question on the proper mix for the old outboard motor.

The original manual would have told you to use a 1/4 of a pint for 1 gallon of leaded gasoline or 25:1 mix

That would equate to 4 oz of 2 cycle oil to 1 gal of gasoline. You may have to replace or clean the spark plug often with this mix being so rich.

With today�s high quality 2 cycle oil you may be able to safely use a 32:1 mix but that is up to you.

Because we no longer have leaded fuels you may want to use a gas treatment in the fuel.

Since this is a ported engine with out valves it may not be a problem.

Sam A.

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Sam A -
Sears Technician
February 17, 2012
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