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 Catalina/Capri 25/250 Sailor's Forums
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 To 'fog' or not to 'fog' ?
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jm
Captain

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Canada
290 Posts

Initially Posted - 10/15/2001 :  15:08:44  Show Profile
I took my Honda 4stroke 8HP in to the dealer to be winterized. When I asked them what exactly they do, it was basically Re&Re any fluids including engine oil, gear case oil, lube etc. But what they don't do is 'fog' the engine - said it gums up the val

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eric
Deckhand

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11 Posts

Response Posted - 10/15/2001 :  15:16:55  Show Profile
i would take out the plugs and shoot a bit inside the cylnders and replace the plugs....maybe even give the carb an outside light coating......


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7 Posts

Response Posted - 10/17/2001 :  10:09:13  Show Profile
I have a Yamaha 9.9 4 stroke that I have fogged for the past 3 winters. I have had no problems with valves sticking. However, I can tell you that it is a bear getting my manual start motor running the first time after storage. It takes many pulls before i

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Champipple
Master Marine Consultant

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USA
6855 Posts

Response Posted - 10/18/2001 :  12:31:01  Show Profile  Visit Champipple's Homepage
What is the primary reason to "fog" an engine. Is this just something for 4 strokes or should I do it with Hercules..(my 22 yr old johnson 9.9....got us up the detroit river).

We generally leave it with the shop over the winter....I am not sure what

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Douglas
Master Marine Consultant

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1595 Posts

Response Posted - 10/18/2001 :  14:24:26  Show Profile  Visit Douglas's Homepage
I would do as the dealer recomends (Not Fog). Over the winter here I run my engine several times. I also run it untill there is no fuel left in the carb so it doesn't varnish up on the inside of the carb. You can also get desecant plugs for the engine. T

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Response Posted - 10/18/2001 :  14:47:46  Show Profile
I can't speak about gumming up the valves on a four stroke, but I would say that fogging the cylinder walls is a really good idea. We leave our powerboat for six months at a time in Florida (2 stroke 115 HP outboard). I spray fogging stuff in the carb whi

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