what do you do if you disable the vro?

[misery]

After reading alot of posts on this site condemning vro pumps and running premix i have a few questions. What do you do if your boat runs a built in tank? I recently purchased a 17 foot Doral with a 150 hp evinrude with vro. Everything is there and the system was functioning the last time the boat was in the water, which was about 2 yrs ago.
Do you just fill the tank with fuel, keeping in mind how many liters you put in, i.e. 100 liters and then just pour in the corresponding amount of premix oil? What about proper mixing? Or should you put the oil in first and let the spash effect of the entering fuel do the mixing? Or should you fill the tank from a jerry can, repeatedly mixing and pouring fuel into the built in tank until full?

 

[Silvertip]

Re: what do you do if you disable the vro?

Any method you mentioned works. Since you know the size of the fuel tank, and you should know roughly how much fuel it would take to fill the tank based on the fuel gauge reading, the easiest way is to work in six gallon increments. 1 pint of oil in six gallons of fuel is a 50:1 mix. Put in one pint of oil and add six gallons. If you are absolutely certain the tank will take at least 12 gallons, add two pints. As you approach full, cut the oil to 1/2 pint and 3 gallons of fuel. Don't get all worked up about over oiling. The engine doesn't care. Just don't under mix on a regular basis as eventually the mix will get too lean. The moment the boat moves the oil and fuel will mix so it doesn't matter what you do first oil or fuel.

 

[pootnic]

Re: what do you do if you disable the vro?

I see your in PEI so doing it in liters is even easier.
Almost all marine oil(2 stroke) will have a few examples right on the container,normally in 5 liter incriments...
For 50:1 if you take the amount of liters and times it by 20,it will give you the amount in ml's.
Ex:10 l's=200ml
15 l's=300ml
20 l's=400ml you get the idea.
The containers(oil) should have incriments of 100ml on the side,makes it pretty easy to mix right in the tank.
I normally put the oil in first then the gas but my tanks only a portable 20L.

I guess I should of put this before...
50:1 is just your liters, divided by the percentage(ratio);gives you your liters,then times it by 1000 to get in ml's.
I see now you have a big tank so if you had 80 liters of gas you would divide by 50 and get 1.6 liters,then you can times by 1000 to get 1600 ml's.
80/50=1.6 l's then X 1000=1600ml's.
I just times by 20 to get ml's right off,easier for me with a small tank.
This will work for all the ratios...just put the right number in.
Hope this example didn't confuse the matter.