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Oil coming out of the carburetor of my Honda Harmony 215 mower

I have oil coming out of the carburetor of my Honda Harmony 215 mower during operation. Worked fine for a while, then thick smoke from exhaust and oil from carburetor air intake area. I had not previously tipped the mower for service. Is this a head gasket? How should I proceed to diagnose and repair?

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Unless the ground was a steep slope while mowing or the mower was tipped over 35 degrees or more in any direction except with the handle bars down (spark plug up is ok), it will most likley be a blown head gasket between the pushrod gallery and cylinder. remove the head and get it re-faced then assembly with new gasket. valve adjustments are 4 thou inlet and 6 thou exhaust

Posted on Jul 20, 2009

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It could also be overfilled with oil. I am working on one right now that someone overfilled with oil and all it does is chug and miss every other stroke making it an 8 the filter is soaking wet with gas and oil I bet it runs fine soon as the air filter is removed.

Posted on Nov 29, 2009

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