1996 25hp Evinrude 3 cylinder recirc hoses?

[kbait]

E25TKLEDC. Just picked this up on trade w/no spark, (I've never worked on a 3 cylinder, or oil injected). Solved spark issue w/CD box. This one has had the oil injection disabled and is now premix. My question is, there are 6 small hose barb nipples on port side of block where the cylinders meet the crankcase. None are connected to anything. Looks like one pair/cylinder. For each cylinder, the upper barbs are elbowed down, and air will pass through both ways (no check valve).. and the bottom barbs comes straight out and have a check valve so air can only pass outward. I imagine there are supposed to be hoses on each.. perhaps leading to each other in some orientation for recirc of unburned fuel? Any help appreciated.. Checked parts schematic, but it didn't detail anything.
Also, there is another elbowed barb (w/check valve) just below the lower carb mount (also port side) that has no hose. Where would that connect to?

Thanks for your help!

 

[racerone]

Service manual does not even show what goes to where.-----I have a sketch somewhere and a bunch of these motors .------Maybe someone else knows how they go.--Will post what goes to where sometime at my convenience after I look at the sketch or one of these motors.

 

[hidef]

You need to look at the parts manual for the layout and it is not ideal but it shows the check valves and hose lengths see the Cylinder and Crankcase diagram.

 

[kbait]

Thanks hidef, I just looked again at the parts diagram, and the 3 elbow barbs are 'boost ports', and the 3 straight barbs are 'transfer port check valves'... So now I know what they're called, but no clue where to run hoses.
And thanks racer for any assistance!

 

[kbait]

Just found a site called 'evinrudeonlineparts dot com' and their parts list (under the 'cyl/crankcase diagram) tells which hose goes where. I think I've got it covered. Thanks!