Is my VRO2 screwing up???

[steelpony5555]

Ok I have just got this boat. The previous owner had a little trouble starting it when I bought it. Smoked like hell when it did start. Soooo I got new plugs and using the ears she started right up on the first turn of the key?????? Smoked like crazy but I have seen outboards smoke like crazy and then calm down and just smoke a little. I ran it for couple minutes and smoking never ceased at idle. It should have cut the oil to 1:150 at idle???? So do y'all think my VRO is pumping too much oil in and I should disconnect it. I worry bout it getting too much oil at idle if I am mixing at 1:50 and still having fouled plugs.... Or should I take the boat out and run it and see if it calms down.....Not sure when the last time it was run other then when I bought it.....Thanks

 

[ondarvr]

It doesn't run at 150:1 at idle, depending on the year it would be around 100:1 or lower. Smoking can be from too much oil, but may have nothing to do with the oil injection pump. If there's a slight air leak in the fuel line, or a restriction it may over oil.

Year and model info would help.

 

[steelpony5555]

Sorry, it's a 1989 Johnson 110 hp....according to some stuff I read on line about those years it's suppose to oil at 150:1 at low speeds...that's why I worry about it fouling out if I mix at 50:1 and drive around at lower speeds a lot...

 

[ondarvr]

There is no concern about fouling plugs, you can run at 50:1. Run it with 50:1 and the oil pump connected and see if it's using the correct amount of oil for a tank full of gas.

The older pumps had a much higher spread in the ratio than the newer ones.

 

[jimmbo]

If the previous owner had run the carbs dry by disconnecting the fuel line when storing the unit, the VRO pump will very happily fill the carbs with oil. Will make for hard starting and great Mosquito Control

 

[oldboat1]

should replace the impeller before running it any more. It can disintegrate and feed pieces into water passages. Also, may need to siphon old gas out of tanks, particularly if permanent tanks -- all kinds of contamination potential, including water. While getting vro issues worked out, good time to check the rest of the fuel system as well if you haven't done that.

 

[steelpony5555]

Yeah, I am going thru and replacing everything possible. Once started the boat ran smooth and got up on plane with 3 people in it. This is a 16 ft Javelin FS..... It also idled smooth and ran nice on the muffs and peed good. But just in case I have been replacing stuff and running a bottle of Sea Foam thru it. I am kinda anal about going over everything and detailing stuff repainting and buffing and waxing ..lol lol... In fact because of the age I am gonna replace all the fuel lines too......I have just been reading and debating on whether or not to disconnect the VRO and go manual....

 

[Baylinerchuck]

I've never trusted the VRO, but that's me. I never minded mixing oil for any of my two stroke engines, small or large. I worry less about the engine when I'm the one oiling them. If I'm adding Sta-bil and ethanol treatment I might as well put in the oil too.

 

[oldboat1]

See your other thread re. use of the pump with premix. If running sea foam, you are going to be seeing smoke, of course. If doing that, I wouldn't do it after replacing lines or doing a carb rebuild -- loosens stuff up.

 

[steelpony5555]

Thanks for all the help...I think I will run it for at least a couple times and see if the smoking reduces...at least I know it's getting oil lol lol

 

[steelpony5555]

Well that's it I am gonna disconnect the VRO. It seems as if I don't catch it on the first 1 or 2 turns of the key to start this motor then I am screwed and it takes a while after that to get it started. And when it does it smokes like hell. If I catch it on the first turn of the key then all it well. Once it is started it runs fine and has no problems unless I shut it off and try to start it again. Same thing then too I have to make sure it starts on the first turn of the key. So I am gonna try mixing my own oil and gas and see what that does. I think what happens is it is flooding the carb with oil if it don't start right away. Otherwise the motor runs great at WOT and sits and idles smooth....

 

[ondarvr]

It will only flood the motor with oil if there's no gas being pumped at the same time, if there's no gas being pumped then the issue lies elsewhere.

Try squeezing the primer bulb before doing a warm start, or even try pushing the key in for a second. There's a point in time after shutting it off and before it completely cools when some motors can be hard to start, the correct technique normally solves the problem.

The oil pump on that motor is old enough that removing it wouldn't be a bad idea, everything eventually wears out and fails. On newer motors they work fine, probably just as many people ruin motors by forgetting to add oil to the gas as oil pumps failures.

 

[flyingscott]

How did you come to the conclusion it's the VRO? It sounds like the carbs may need to be looked at a bad needle and seat will cause the same problems. A mis-adjusted float and dirt in the carb will also cause that problem. It sounds like the motor is running rich.The VRO really doesn't do anything until the motor is running. You also need to make sure all the clamps are in good shape on a vro an air leak in the fuel line will cause that.