Bypass oil injection 2000 90ELPTO

[Captain Bravo]

Hi guys. I just got a 2000 90hp ELPTO to replace a 1973 50hp Johnson on my pontoon. I've been running older boats for 20 years and had several motors, but this is the first one I have had with oil injection. Bottom line, I'm just uncomfortable with it. Maybe because I've had so many problems with boat motors over the years.

In any case, I've read a lot about people debating IF it should be done, but nothing on how to do it. Can anyone give me what I need to do to bypass this system?

Thanks guys.
CB

 

[halsteadmorris]

I have a 1996 40 ELPTO and have also deleted the oiler (for similar reasons).

The oiler was deleted before I bought the motor, but I have personally deleted several others. The short answer of “how” to do it:

Plug any line that goes into the tank with whatever seems appropriate. I have had good luck simply shoving a SS bolt into the line and using a hose clamp. Fuel/Oil safe silicone plugs work too. Make sure they are clamped tight to avoid any air leakage. You do not want poorly/unplugged hoses, etc introducing excess air.

You may need to bypass low oil, low flow, etc sensors if you get any alarms.

 

[airshot]

OMC oil injection systems have had issues and I would not trust them. But the Merc units have been very reliable from my research. A friend is a retired marine mechanic, says he doesn't remember a Merc injection system failing unless abused. My 1992 injector systems all original and works great. Idles all day without fouling plugs...mine has also been well maintained...