Question about Yamaha TTR 225 Motorcycles

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I over filled the crank case with oil, as my bike leaks. But my ******* put far too much oil in. I noticed a few days ago that there is oil slowly seeping out under the valve covers, and off the air return line and primary cover and a couple other spots. Also noticed before I saw the oil coming from places it shouldn't be, that my gas milage dropped drastically. Also, when I started dissasembling the bike to clean it up, a substantial amount of oil spilled out of the air cleaner cover when I removed it. I am wondering if there is a way to tell if I have done engine damage or not. And if I should bother to have it looked at by a mechanic. I have drained the oil, and it sure was over filled, and cleaned up most of it, still some more hard to reach places with a nice thin coating that I will clean up before reassembling of course.

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Hi. I doubt that you have damaged the engine. The only reason the gas milage dropped so drasticcally, is that the air filter must have been soaked in oil. If the filter is soaked in oil, the carburetter will get little or almost no air theough the intake and then your air/fuel mixture is very lean. Make sure to clean the air filter and take it for a drive. Hope this helps

Posted on May 25, 2011


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