Johnson Carb to Evinrude EFI swap Question

[Fish]

I have a friend who is getting ready to swap twin 1998 225 carb Johnsons to twin 2000 225 EFI Evinrudes. He knows even less about outboards than I do so I thought I would post and hopefully someone has done this before. His Questions are:

Do the oil tanks need to be changed or can the Evinrudes run off the tanks from the Johnsons?

Is there a difference in the fuel systems that will need to be addressed (EFI recirculating system)?

Is there anything else that might be helpful to know before learning the hard way (besides those of you who will suggest buy mercs instead)?

Thanks for any suggestions,

Fish

[Holeshot Marine]

The oil tanks are the same tank just have a return line fitting plumbed to them. Some late modle tanks have a place for the 5/16 return some dont just check what you got....


The fuel system on the boat side stays the same, primer bulb and all....use a 3/8 fuel line


Controll cables and box will stay the same as will the wiring harness...

This is if you are talking about a DFI FFI

[Markus]

Make sure your friend's engines have had all service bulletins applied. There was a particularly nasty quality issue involving 2000 big block FICHTs that resulted in fuel leakage from the injectors into the cowling.

[Fish]

thanks holeshot and markus, I appreciate the advice.

Fish

[Rowdy]

Fish

To keep your buddy from replacing the oil tanks, have him look to see if he has the oil tank already setup for the 5/16" oil return hose. If not which is most likely with the 98' MY stuff he can get a kit to convert this real easy. Kit has the hose and everything needed to do this. Part# 176754 its about 40 bucks as to the price of a new tank for 100 bucks... I have seen guys take and tap the tank and just thread a fitting to stick the 5/16" hose on, but with this kit it looks like a factory tank and is simple enough to do...

Also on the 2000 MY motors have him pull the hood on the motors and on the inside of the top of the hood on each side he will see a 1/4" drain hole that was drilled in the air baffle, it was to drain the air baffle of splash water or rain when it got in the baffle. The two 1/4" holes just drained onto the starter on the postside and the PDP on the starboard side of the motor. These need to be sealed up with silicone, there is a 1/4" X 1" slot at the back of the hood that will more than drain the baffle and this is drained over board and not onto the P/H inside the hood. The hole that drained on the PDP has caused plenty of electrical problems for the PDP(power distrubution panel) on the motor and all the fuses and relays in them. He sure will need to seal these if they have not already been...