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Old 07-29-2010
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Glad to have read this article. I just moved my boat to saltwater. My motor is a Suzuki 6hp and I keep it in the water.
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Old 07-29-2010
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Think in terms of dentistry:

You can never brush your teeth.

You can brush every three months.

You can brush every week.

You can brush every day.

You can brush after every meal.

There is always someone who never brushes their teeth and at the age of 70 still has avoided Gingivitis. Call that luck, genetics or a good Bourbon, but common sense would indicate that the more you brush the more likely you will be to still have them...It does not matter what brand of engine you have. Salt kills. Combine that with electrolysis and your engine will not see it's tenth birthday. Flush if at all possible, even if it takes effort
Solution One Maritime
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Old 07-30-2010
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Originally Posted by Maine Sail View Post
Really you guys flush every time? Hmm I've had outboards on the ocean for well over 35 years and never once flushed a single one of them after use. Sure, I flush at the end of season but that's it.

I have never had one single outboard fail me due to internal corrosion. My current Johnson 4hp twin cylinder is over 11 years old now, still has to original impeller, still spits a steady stream and runs perfectly cool. The salt water concerns over outboards are way, way over blown. My brother has 40k worth of engines on his center console that also never get flushed after use and again are in perfect condition and have never given him an ounce of problems. I've spent a good deal of time on lakes and I don't notice that the engines on lakes are any older, as a lot, than the engines I see running on the ocean... Just some food for thought..

My inboard diesel also never gets the raw water side flushed and it too runs fine without it.

It can't hurt to flush but I think it's overkill and can certainly take time away from the fun side of sailing..

P.S. My next door neighbor has a 1977 Johnson on his dinghy that still runs like a top and has been used and not flushed after each use since he bought it in 1977. The paint looks like crap, and it's on it's umpteenth starter cord, but the motor still runs great..
+1. Never flush until the end of the season. Never had a problem. This is in Maine, don't know about other areas but doubt that the guys in FL do all the time either.
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Old 07-30-2010
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i have a johnson 115 that is a 1988 vro it only gets flushed at haulout,never had a problem
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Old 08-09-2010
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I was making this procedure,harder than it is.My boat is tied to a floating dock. I used a 5gal plastic cat litter bucket,tied to a rope.Tossed it over the motors raised foot.Dropped the foot,tied the rope to my back railing and filled the bucket with water.Ill flush it once aweek,when I wash the boat,if I take it out..A local dealer of Suzuki motors,uses 6hp 4 strokes on his rental fleet. I asked how often to you flush the motors...he replied we dont and they run daily.should be noted their operation in in brackish water,off a fresh water river,thats runs into the gulf

Last edited by bobchandler; 08-09-2010 at 01:05 PM.
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Old 08-09-2010
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It would be a very good idea to flush often, if at all possible. That being said, I certainly don't with my outboards, and there are zillions of cast iron block inboards decades old which have never been flushed at all.
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