525EFI Winterization
12-15-2004, 12:31 PM
#1
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525EFI Winterization
About to winterize here and what exactly do I not have to winterize the 525 with the closed cooling. I want to be able to do this myself and not have to get a new motor in the Spring 
Thanks Jim
Thanks Jim
12-15-2004, 02:22 PM
#2
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Re: 525EFI Winterization
All you need to worry about, is getting the
water out of the inlet/sea pump, cooler circuit.
I have a 5 gallon bucket with a hose
coming out of the bottom.
Set the bucket on the swim platform.
I connect this hose to a flushing attachment,
dump anti freeze in the bucket, start the
engine, run it 'til the anti freeze comes out the
exhaust. ( you've displaced all the water in the
inlet circuit)
I spray fogging oil down the intake during this
proceedure also.
Takes about 5 minutes.
water out of the inlet/sea pump, cooler circuit.
I have a 5 gallon bucket with a hose
coming out of the bottom.
Set the bucket on the swim platform.
I connect this hose to a flushing attachment,
dump anti freeze in the bucket, start the
engine, run it 'til the anti freeze comes out the
exhaust. ( you've displaced all the water in the
inlet circuit)
I spray fogging oil down the intake during this
proceedure also.
Takes about 5 minutes.
Last edited by jt29olhp500s; 12-15-2004 at 02:27 PM.
12-15-2004, 03:18 PM
#3
Re: 525EFI Winterization
DO NOT SPRAY FOGGING OIL IN THE THROTTLE BODY!!
Read the manual.
You will gum up the air flow sensors. You can do this on a carb, not with EFI.
Proper procedure is upon your just prior to your final running of the engine, when you are pumping in your antifreeze...
...remove your Fuel/Water Seperator, dump out half the fuel, and fill the rest of the way with 2-Stoke (Mercury Outboard) Oil. There is lots of info here on OSO.
Read the manual.
You will gum up the air flow sensors. You can do this on a carb, not with EFI.
Proper procedure is upon your just prior to your final running of the engine, when you are pumping in your antifreeze...
...remove your Fuel/Water Seperator, dump out half the fuel, and fill the rest of the way with 2-Stoke (Mercury Outboard) Oil. There is lots of info here on OSO.
