What is this ???

[Mytac]

Can someone please help me identify the model of this engine that was on the SIB i bought recently. I know its an Evinrude 25hp, I have attached some photos including the serial number etc, but would love to get the manual for the engive to help me.

I hope you can help, thanks all...

[Fenlander]

Have a look at this pdf & scroll down a little to "Model number designation"... "model years 1980-1998"

http://shop.evinrude.com/media/docum...rReference.pdf

The first greyed put letter you don't have... then E for Evinrude... 25hp... BA for rope start with lighting coil... no shaft length letter as it's a standard 15"... CN for 1982... and your last B is a greyed out model run/suffix you can ignore. Do you reckon the same?

If so your manual is here...

johnson/evinrude outboard repair manual 1973-1989 ,1.25-60 hp | eBay

[office888]

It's a very good engine! 2-cylinder 25hp, very light weight.

I believe the engine eventually evolved in to the 2-cyl 35hp / 55hp that the US Military used from about 1990 through about 2000 or so?

Check the compression and check for lower unit damage / water contamination. If both items check out, then I would run it!

[Mytac]

Thanks a lot for your help guys

[Seaflyer02]

This is the same as our first Evinrude.
We bought ours new to go on the back of a tired C-Craft and then a Avon S400. It was a fantastic engine so stayed with the same make ever since.

Brought back a lot of happy memories seeing the photo.

Have fun with yours.

[Nightfisher]

Agree totally with Office888, and add while the plugs are removed look inside each cylinder and inspect the top of each piston for white-ish particles such presence is a sign the engine overheated at some point. Great engines but often ran into water pump issues. The lower unit check, if not seized - hand turning, can be checked by removal of the lower unit lubricant plug checking for anything milky looking. Good Luck, they were pretty-good engines!