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How to winterize a 25 hp evinrude outboard motor?

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asked Oct 1, 2011 by 3rdcoastsailor (670 points)
edited Nov 15, 2011 by 3rdcoastsailor

2 Answers

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Best answer
Also, remove the spark plugs and squirt 'fogging oil' (a light weight, low viscosity petrolem product) into the cyclinders. Replace plugs loosely. Drain the lower unit case (there could be water in it), and replace with 90wt gear oil. Lubricate obvious moving parts, eg. shift linkage, tiller handle, motor mount, etc. Store in a dry place.
answered Nov 14, 2011 by Sailbad the Sinner (3,140 points)
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Stabilize the engine’s fuel supply with OMC 2+4 fuel conditioner. Add one ounce of OMC 2+4 fuel conditioner for every gallon of gasoline. Run the engine at approximately 1500 RPM for five minutes to ensure that the fuel supply system is full of stabilized fuel.

answered Nov 8, 2011 by anonymous
edited Nov 9, 2011 by dadpups
Also need to stop engine and remove all spark plugs. Spray a liberal amount of OMC Storage Fogging Oil into the spark plug holes, then turn flywheel to distribute the fogging oil throughout the cylinders. Install the spark plugs.
commented Nov 9, 2011 by Cap'n Cook (950 points)
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