Runs good, smokes a lot

[winsor94]

I have a 1995 Evinrude Oceanpro 200 HP outboard and the smoke that comes out of it at low speeds will make you pass out. Here's what I've done so far...<br /><br />At the shop: replaced the VRO pump, rebuilt the 6 carbs., and found and repaired any air leaks in the fuel line.<br /><br />Any other suggestions because it's rather intoxicating. Other than that, she runs nicely.

 

[Dhadley]

Re: Runs good, smokes a lot

The oil pump (its not a VRO pump) will pump extra oil if the syatem sences a fuel restriction.<br /><br />What kind of oil and spark plugs?

 

[winsor94]

Re: Runs good, smokes a lot

I was under the impression that the VRO pump doubles as an oil and fuel pump. I'm using Champion plugs and TCW-3 oil in its reservior. One other thing, I decarbonized the engine without replacing the plugs. I'll be doing that this weekend. Maybe this will make some difference?

 

[Bobby O]

Re: Runs good, smokes a lot

What oil usage are you getting. If over 65:1 then you've got an oil pump problem.

 

[winsor94]

Re: Runs good, smokes a lot

Interesting enough I ran the engine on an external premixed tank of gas and disconnected/blocked the VRO and had the same outcome. Does white smoke mean burning oil? Maybe a faulty VRO? Is this possible?

 

[voodoo]

Re: Runs good, smokes a lot

white smoke is more likely steam or water mixed with hydrocarbons or carbon monoxide... oil is generally blue .. is one plug cleaner than the others?

 

[Dhadley]

Re: Runs good, smokes a lot

Your pump will pump fuel and oil. It pumps oil at a steady (more or less) rate rather than a variable rate like a VRO pump.<br /><br />Try new plugs. After a decarb they can become fouled -- not unusual.

 

[winsor94]

Re: Runs good, smokes a lot

Interesting yet confusing... The sticker on my outboard states the spark plug I should be using is a QL78YC and the OMC service manual states the recommended plug is a QL77JC4.<br /><br />Which is correct? 1995 Evinrude 200HP Oceanpro.

 

[Dhadley]

Re: Runs good, smokes a lot

Either will work and work well. Personally I prefer the cooler 77's. <br /><br />You have to look at your overall set up and intended usage lots of trolling etc). Especially if you are in a situation where you have added combustion temps. Like lugging or youre using something other than the recommended fuel (87 octane).

 

[FAV453]

Re: Runs good, smokes a lot

I have 225 ocean runners and had white smoke coming out or at least more smoke than the other. I pulled the plugs replaced 3 of 6 that were the worst (fouling)then brushed and re gapped the rest and the smoke went back to normal.