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Winterizing a Honda outboard 4 stroke (90HP)

  
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Dan J.S.

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Since: May 03, 2004
Posts: 68



(Msg. 1) Posted: Wed Sep 10, 2003 9:36 pm
Post subject: Winterizing a Honda outboard 4 stroke (90HP)
Archived from groups: rec>boats (more info?)
Is there a web site, or a step by step manual to winterizing this engine? I
bought a Honda 90 -- 4 stroke, second hand, and there is no manual.

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Messing In Boats

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Since: Apr 07, 2004
Posts: 44



(Msg. 2) Posted: Thu Sep 11, 2003 12:00 am
Post subject: Re: Winterizing a Honda outboard 4 stroke (90HP) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
I've got a Honda 90 and have been winterizing it here in Minnesota since
1998 and it's still alive. A great engine, I might add.

Charge up the batteries. Put fuel stabilizer in the gas and mix it up.
Put the muffs and water hose on it, turn on the water and run the motor
till it's good and warm. (Make sure water is running out the "pee" hole
while this is happening.) Drain the oil from the engine by removing the
cover plate and the plug on the starboard side. Drain the oil from the
lower unit by removing the plugs on the top and bottom (Inspect the oil;
if it's milky, see your dealer). Replace the oil filter (kind of a messy
job; put a bunch of paper towels below it and handle with a Ziplock
bag). Refill the engine oil with a good grade of 10-30W. Replace the
lower unit grease with the GL-5 80-90W gear oil from the bottom plug
till it comes out the top plug. Put in the top plug, then the bottom.
Take off the prop, lube the shaft with light oil and put it back on. Put
the muffs back on and turn on the water again. Start engine and run
enough to distribute the new oil through engine. Check engine oil level
and adjust as needed. (This is the last adjustment I have ever made to
the oil level in this engine.) Idle it down and squirt fogger into air
intake till engine stalls. Turn off water, take off the muffs and spin
engine over just enough to get water out of water pump. (Some people now
pull the plugs and squirt fogger into individual cylinders, but I don't)
Make sure the motor is in a vertical position so all the water drains
out. Put 600 milliamp trickle charger/maintainer on batteries, plug in
and you're done. (Some people take out the batteries and take them to
bed with them to keep them warm all winter, but I don't. It only gets
down to -35 here.) Email me with questions.

If you are lazy, the only thing that is absolutely essential in a
freezing climate is that you make sure the motor is in a vertical
position so all the water drains out of the cooling system. Otherwise
you can buy a new engine in the spring.

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Dan J.S.

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Since: May 03, 2004
Posts: 68



(Msg. 3) Posted: Thu Sep 11, 2003 10:21 am
Post subject: Re: Winterizing a Honda outboard 4 stroke (90HP) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
"Messing In Boats" <colwe003 DeleteThis @tc.umn.edu> wrote in message
news:3F5FF345.F925D8A3@tc.umn.edu...
 > I've got a Honda 90 and have been winterizing it here in Minnesota since
 > 1998 and it's still alive. A great engine, I might add.
 >
 > Charge up the batteries. Put fuel stabilizer in the gas and mix it up.
 > Put the muffs and water hose on it, turn on the water and run the motor
 > till it's good and warm. (Make sure water is running out the "pee" hole
 > while this is happening.) Drain the oil from the engine by removing the
 > cover plate and the plug on the starboard side. Drain the oil from the
 > lower unit by removing the plugs on the top and bottom (Inspect the oil;
 > if it's milky, see your dealer). Replace the oil filter (kind of a messy
 > job; put a bunch of paper towels below it and handle with a Ziplock
 > bag). Refill the engine oil with a good grade of 10-30W. Replace the
 > lower unit grease with the GL-5 80-90W gear oil from the bottom plug
 > till it comes out the top plug. Put in the top plug, then the bottom.
 > Take off the prop, lube the shaft with light oil and put it back on. Put
 > the muffs back on and turn on the water again. Start engine and run
 > enough to distribute the new oil through engine. Check engine oil level
 > and adjust as needed. (This is the last adjustment I have ever made to
 > the oil level in this engine.) Idle it down and squirt fogger into air
 > intake till engine stalls. Turn off water, take off the muffs and spin
 > engine over just enough to get water out of water pump. (Some people now
 > pull the plugs and squirt fogger into individual cylinders, but I don't)
 > Make sure the motor is in a vertical position so all the water drains
 > out. Put 600 milliamp trickle charger/maintainer on batteries, plug in
 > and you're done. (Some people take out the batteries and take them to
 > bed with them to keep them warm all winter, but I don't. It only gets
 > down to -35 here.) Email me with questions.
 >
 > If you are lazy, the only thing that is absolutely essential in a
 > freezing climate is that you make sure the motor is in a vertical
 > position so all the water drains out of the cooling system. Otherwise
 > you can buy a new engine in the spring.
 >

Thank you very much! What about running window washer fluid (-40) though the
muffs and then draining that out - just to make sure no water in it? This
is what they did on my IO (old boat). Will that screw anything up?

Thanks for the oil change tip. I was saving the oil change until spring. Do
you think there is a benefit to do it before winter sets in?<!-- ~MESSAGE_AFTER~ -->
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Messing In Boats

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Since: Apr 07, 2004
Posts: 44



(Msg. 4) Posted: Fri Sep 12, 2003 11:42 pm
Post subject: Re: Winterizing a Honda outboard 4 stroke (90HP) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
If you just spin the water pump a little bit when it doesn't have water
coming into it, it will be dry enough. Most people don't even do that. I
would be worried about introducing some kind of chemical that might
attack the impeller or the seals. Of course if you run the pump without
water for more than 10 seconds you run the risk of melting the impeller.
Run it too much longer than that and you can fry the engine.

Always change the oil in the fall. If you put it to bed with the old oil
in it, all of the salts, acids and other yucky stuff you have
accumulated all summer gets to work on the engine all winter. Not good.
Some folks change the oil filters every other time, as I believe the
manual recommends. I do it every time.

Also some folks change the plugs in the spring after the fogging oil and
fuel stabilizer is all burned up. I do them every other year. I also
change impellers every other year.

jeff
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Dan J.S.

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Since: May 03, 2004
Posts: 68



(Msg. 5) Posted: Sat Sep 13, 2003 11:41 am
Post subject: Re: Winterizing a Honda outboard 4 stroke (90HP) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
"Messing In Boats" <colwe003.TakeThisOut@tc.umn.edu> wrote in message
news:3F629233.B356DB84@tc.umn.edu...
 > If you just spin the water pump a little bit when it doesn't have water
 > coming into it, it will be dry enough. Most people don't even do that. I
 > would be worried about introducing some kind of chemical that might
 > attack the impeller or the seals. Of course if you run the pump without
 > water for more than 10 seconds you run the risk of melting the impeller.
 > Run it too much longer than that and you can fry the engine.
 >
 > Always change the oil in the fall. If you put it to bed with the old oil
 > in it, all of the salts, acids and other yucky stuff you have
 > accumulated all summer gets to work on the engine all winter. Not good.
 > Some folks change the oil filters every other time, as I believe the
 > manual recommends. I do it every time.
 >
 > Also some folks change the plugs in the spring after the fogging oil and
 > fuel stabilizer is all burned up. I do them every other year. I also
 > change impellers every other year.
 >
 > jeff

Thanks again Jeff! I really appreciate your help on this!
 ><!-- ~MESSAGE_AFTER~ -->
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