[THEFERMANATOR]

I pre mixed 50:1 on both my modded EVINRUDE and my MERCURY before it, and never had horrible smoke. I always used PENNSOIL PREMIUM PLUS synthetic blend. I tried the MERCURY QUIKSILVER oil and it smoked to high he!! on it. The MERCURY was injected so I didn't do anything to it for idle mixture, but my EVINRUDE did get rejetted to help with the loading up at idle. I used to troll it for hours on end, and it would smoke, but never to the extreme it was unbearable. When you get em set up right and use good oil, it isn't horrible. Will it ever be as clean as an oil injected engine, no. But they can be made to run decent on 50:1. I don't like 40:1 because it raises the viscosity of the fuel which actually leans out your mixture, not to mention there is more oil and less fuel which also leans out your fuel mixture, and oil burns hotter than gas does(and it leads to more carbon build-up). Unless you plan on spinning one to over 6500 or so, then go to 40:1 and make sure and use ring free or sea foam in your fuel.