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Antifreeze for winterization?

 
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curioustraveler



Joined: 26 Apr 2019
Posts: 211
City/Region: Annapolis
State or Province: MD
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PostPosted: Sat Dec 19, 2020 1:51 pm    Post subject: Antifreeze for winterization? Reply with quote

Apologize if this is already addresses, I did a quick search and didn't see it. I'm headed out to winterize my Honda BF90. I checked the SELOC guide and it says to flush the motor but doesn't say anything about flushing with pink antifreeze. I've always done this with my old evinrude. Is this not necessary on the Honda as long as I store if vertically so any water drains out?

Thanks
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colbysmith



Joined: 02 Oct 2011
Posts: 4522
City/Region: Madison
State or Province: WI
C-Dory Year: 2009
C-Dory Model: 25 Cruiser
Vessel Name: C-Traveler
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PostPosted: Sat Dec 19, 2020 1:59 pm    Post subject: Reply with quote

I can't see any reason you would need to flush an outboard with antifreeze, as long as you leave it down for the winter. Colby
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dgeorges



Joined: 04 Sep 2013
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City/Region: Highlands Ranch
State or Province: CO
C-Dory Year: 2006
C-Dory Model: 22 Cruiser
Vessel Name: FRESH FISH
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PostPosted: Sat Dec 19, 2020 2:08 pm    Post subject: Reply with quote

My outboard shop advised no action is necessary. I stored my BF50 and BF90 in IL for ten years in brutal subzero temps with no issues. the only thing you MUST do is keep water out of the lower unit or you'll be sorry later when you fire her up in the spring.

One thing I did do was "exercise" the engine every time the temps got up over 45 deg F. I made sure I had plenty of time to drain the water out before the night time temps dropped to sub 0 F.

I'm doing the same think here in CO.

Good luck

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curioustraveler



Joined: 26 Apr 2019
Posts: 211
City/Region: Annapolis
State or Province: MD
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PostPosted: Sat Dec 19, 2020 7:40 pm    Post subject: Reply with quote

Thanks. It's funny how many different perspectives there are on winterizing. Many of my neighbors don't do anything, others seem to be prepping for an Arctic winter.

I changed the engine oil, gearcase oil, fogged the plugs, and drained the carbs.
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dgeorges



Joined: 04 Sep 2013
Posts: 182
City/Region: Highlands Ranch
State or Province: CO
C-Dory Year: 2006
C-Dory Model: 22 Cruiser
Vessel Name: FRESH FISH
Photos: FRESH FISH
PostPosted: Sat Dec 19, 2020 8:42 pm    Post subject: Reply with quote

Outstanding. Can't go wrong doing any of what you wrote above.

I like to turn the motor on when it's warm so the seals and gears don't sit without fluids and lubricants around them. BUT only when it's warm enough, and I can drain the water out of her completely before the cold sets in for the day.

Keep up the good work, Captain.
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colbysmith



Joined: 02 Oct 2011
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City/Region: Madison
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PostPosted: Sat Dec 19, 2020 9:00 pm    Post subject: Reply with quote

I do most of my routine maintenance as part of my "winterization". This is usually done in October or November. The motor is not ran again until preparation for our St. John's River gathering in March. (So, ran on the muffs end of February, first of March.) I do fog the engine however as part of it's winterization. RV Antifreeze is ran thru the potable water system and associated drains. Colby
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Foggy



Joined: 01 Aug 2013
Posts: 1518
City/Region: Traverse City; Northern Lake Michigan
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C-Dory Year: 2014
C-Dory Model: 26 Venture
Vessel Name: Boatless in Boating Paradise
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PostPosted: Sat Dec 19, 2020 9:07 pm    Post subject: Reply with quote

I had 2 Honda BF90s on my 26 Venture, live in MI, never used antifreeze.

Why? Just get the water out.

Aye.

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curioustraveler



Joined: 26 Apr 2019
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PostPosted: Sat Dec 19, 2020 11:06 pm    Post subject: Reply with quote

It's one of those things I did only because that's how my neighbor showed me to do it. Run the motor with antifreeze until it pees pink. Glad to know I don't need to do it...was a pain.
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