I have been rebuilding an 04 predator 50 and while I was working on that I came across an 06 predator 50 that I also scooped up. The 06 is perfect, except the previous owner said he didn't trust the oil mixer so he puts pre-mixed in it. He only owned it long enough for a few tanks, the previous owner used the tank and mixer, but for whatever reason this guy thinks the mixer isn't working right. The ratio he was using was 30:1. It runs awesome, but smokes pretty bad and my assumption (hope) is that the mixture is too rich in oil. I probably won't be getting into the oil pump (unless someone knows how to test without frying my engine by running straight gasoline), so I'm thinking I'll just use pre-mixed gas for both of these predators. Any idea what the right ratio would be if I mixed it myself with Polaris 2 cycle oil? I've read 40-1 and 50-1, but can't find any official Polaris suggestions. My local dealer said "you really should bring it to us so we can replace your pump".