Oil injection vs mixing

J

Jaylink

Seaman Apprentice
Joined
Apr 8, 2012
Messages
35
Hello have a 1990 2 cycle40 horse evenrude and a mechanic pointed out to me, my oil injected alarm was unplugged when I got the boat. Any reasons why it would be unplugged? A mechanic is trying to encourage me to remove the system and mix the fuel myself to ensure motor life? He said the pump is expensive and u don't know if it fails, he wouldn't elaborate on the state of the alarm. Is there anyway to test it? What should I do?
 
AEROCOOK

AEROCOOK

Master Chief Petty Officer
Joined
Jul 28, 2004
Messages
872
Re: Oil injection vs mixing

If it were mine I'd disable the VRO and premix at 50/1 ratio. If the VRO alarm is unplugged you would have only one way of knowing if the VRO stopped working, that's the unpleasant expensive way. I'm guessing that the majority of VRO equipped motors of that era have been converted to premix, mine included.
 
A

archcycle

Chief Petty Officer
Joined
Sep 21, 2009
Messages
647
Re: Oil injection vs mixing

I wonder if your controls aren't an exact match for the motor hence the alarm not being hooked up? It would be insane to run a VRO system without an alarm to tell you if something was wrong like that you are out of oil or no oil because the oil is floating on top of water which found its way into the tank (saw a post where that was the case recently!).

It's common and safe to unhook the VRO and pre-mix your oil 50 parts gas to 1 part oil directly into the tank. I always have a pre-mix measurement container with a tank of gas worth of oil and a tank of gas worth of Stabil ethanol treatment ready and it's no problem to just dump it into the tank then pump in the fuel and then just not worry about a 22 year old pump working the heck out of a thin rubber membrane being the life support of the motor.
 
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