Return to MarineEngine.com's home page. Home Call MarineEngine.com or send an email message. Contact Info about orders, shipping and returns. Shipping/Returns View your shopping cart. Cart
Need help with your boat parts order? Call 800-209-9624 Monday - Friday 8:30 AM - 5:30 PM EST Order by phone (800) 209-9624
Monday - Friday 8:30 AM - 5:30 PM EST
Discussion Forum Free Classifieds
Topics Topics Edit Profile Profile Help/Instructions Help Member List Register  
Search Last 1|3|7 Days Search Search Tree View Tree View  

Winterizing a 200 HP EFI Mercury

Discussion Forum at MarineEngine.com » Mercury Mariner Outboard » Archive through November 06, 2009 » Winterizing a 200 HP EFI Mercury « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

frank tortella
New member
Username: mytrifecta

Post Number: 1
Registered: 10-2009
Posted on Monday, October 26, 2009 - 01:19 pm:   Edit Post Delete Post View Post/Check IP

What are the proper steps for winterizing this EFI outboard? I know how to change the lower unit oil, lubricate all fittings, drain/change filters, etc. but I have no clue how to deal with "engine fogging" with the EFI.
Top of pagePrevious messageNext messageBottom of page Link to this message

Graham Lamb
Senior Member
Username: galamb

Post Number: 6019
Registered: 05-2007


Posted on Monday, October 26, 2009 - 08:53 pm:   Edit Post Delete Post View Post/Check IP

Just run it at idle speed (on a flusher) with stablized gas for 5 or 10 minutes (or if you are going to make "one more trip", just add the stablizer to the gas and take her out for the day).

** you can add fogging oil to the gas as well, but I have never used that practice - just my way of doing things, no particular reason one way or the other - in the spring when I bring the motor back in service, I always use a product such as Merc's "powertune" or SeaFoam to clear out the fogging oil, carbon and other cooties that have collected while it's sitting.

Do not disconnect the gas line and let her run out or you will flood the intake with oil when the gas stops but the oil doesn't.

Then when you shut her down simply pull the sparkplugs and give each (hole) a good spray of fogging oil.

**Some guys use WD40 or even just plain old TCW3 outboard oil - both could be used in a pinch if it was your only alternative to nothing, but fogging oil is cheap and available, so use it unless it would mean a 100 mile trip to pick some up.

If you leave all the plugs out you can easily rotate the flywheel a couple of rotations to get the fogging oil over the entire cylinder - then put the plugs back and tighten them up.

You can also use the fogging oil over the entire powerhead - spray everything - not so much that it's dripping, but a good coat helps keep the moisture and other cooties out of anything electrical or electronic and helps prevent rubber hoses from rotting and rust/corrosion forming on the block and any exposed connections.

It's just that easy :-)

Administration Administration Log Out Log Out   Previous Page Previous Page Next Page Next Page

Free Classifieds Discussion Forum
Home | Contact | Shipping/Returns | Cart
Boat Engine Parts Boat Motor Manuals Boat Accessories
About Us | Terms of Use | Privacy Policy MarineEngine.com, 184 Jones Drive, Brandon, VT 05733 USA
© 2009 MarineEngine.com, Inc. All rights reserved. Phone: 802-247-4700 | Fax: 802-301-1034 | eMail: info@marineengine.com