Re: Winterizing an EFI Merc.

[Perfidiajoe]

Re: Winterizing an EFI Merc.

Just wondering, I have a '95 225 EFI Merc. that I will soon be winterizing (sadly). I winterize several boats for several people. On some of the later Johnny/Rudes I use the CRC fogging fluid which screws onto the fuel service port, & that works pretty well. On my merc. I also have a service port as I guess all EFI's have. I would like to know if you guys think I can use the same procedure on the Merc. or if there are some issues I don't know about. I've always been a kinda by the book guy & the books don't say Yea or nay to this. Thanks, Joe

 

[WillyBWright]

Re: Winterizing an EFI Merc.

Re: Winterizing an EFI Merc.

That's for testing fuel pressure. That injection can won't work on that. Remove the spin-on fuel filter and discard the contents. You can usually reuse the filter, but replace it if you prefer. Put 1 tsp 2-stroke oil and 1 tsp fuel stabilizer into the filter. Drain the fuel from the VST (there's a small brass screw/plug at the bottom) into a container. Pour some of that fuel into the fuel filter and reinstall it. Now, pump the primer bulb until firm and run the motor for a few minutes on the hose. That will oil things up well. Squirt a bit of fogging oil into each cylinder if you wish, but that's not terribly necessary unless it's going to be stored for a few years.

 

[Perfidiajoe]

Re: Winterizing an EFI Merc.

Re: Winterizing an EFI Merc.

Thanks Willy, I do all that as part of winterization, I was just wondering if I could use the service port as I would on an OMC. Guess Not

 

[dtherrien]

Re: Winterizing an EFI Merc.

Re: Winterizing an EFI Merc.

Perfidiajoe,<br />I have a 97 150efi.I have read either here or in my shop manuel not to use a fogging oil because it might mess up one of the sensors on the motor.<br />What i do is...1. when i think i will be using the boat for the last time i estimate the amount of gas in the tank and add 2stroke oil to make a 50;1 in the tank and add a can of seafoam....so when you take it out the last time you will run a 25;1 oil/gas mixture and thr seafoam through the motor.<br />2.Flush the motor out on the garden hose ( use the adapter location)<br />3.Change fuel and bleed line filters.<br />4. Change spark plugs and add a cap full of oil down the plug holes .(turn kill switch off and turn over)<br />Then do all the rest of your winterizing.

 

[Perfidiajoe]

Re: Winterizing an EFI Merc.

Re: Winterizing an EFI Merc.

I've used the Merc. Fogging oil (Storage Seal, I Believe it is) every year since the engine was new, I also believe it is recomended, both on the can & by my dealer. I appreciate the responses, I was just wondering about the service port