New Echo grass trimmer leaks from the exhaust

[John Doe]

I suppose the fact that a two-stroke engine normally burns oil means that there will be a small leakage of oil from the exhaust? After running the thing for two hours or so, one drop came out of the exhaust. That's normal, right?

Thanks.

[gregz]

I never saw come out of exhaust, but seems reasonable. It's going to condense if there is smoke, but should also evaporate when hot. My trimmer leaks out the gas cap if I don't set it in the right position.

Greg

[trader4]

I've never seen oil come out. Nor would I expect it too. The oil is in a very low concentration in the gas and should burn. Even if some gas/oil mix came out unburned somehow, it would be 40 times more gas than oil so it wouldn't really look like oil.

[hrhofmann]

If there was a slow fuel leak, the gasoline in the leak would evaporate first, leaving the oil(y) substance behind to drip out. But if the exhaust was hot from running for two hours, like the OP said, then something doesn't make sense. Even the oil would be evaporated.

[John Doe]

Mine is California Air Resources Board (CARB) compliant. Maybe more of the exhaust is turned into liquid.

[John Doe]

It starts easily enough. All I have to do is look at the cord... :)