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Sign of worn rings or carb excessively rich. Usually there is not timing adjustment on 2 cycles but you are getting gas down cyl. walls past the rings due to too much fuel , excessive priming or ring wear. Check compression through plug hole.

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Q: When engine is running gas gets in the oil crankcase?
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Why am i getting gas in my oil in my Honda 400ex?

Carburetor needle valve probably leaking while engine is not running causing gas to run down the cylinders into the crankcase.


What does it mean when you check your oil and it smells like gas?

If engine has fuel pump mounted on the engine then it is leaking gas into crankcase.


Will your car run when gas gets into your crankcase oil?

Yes, but you risk damaging the engine if there is any significant amount there. The oil should be changed immediately and the problem rectified.


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It is a safety feature for the engine I believe so the engine is not damaged.


How is gas getting in your oil 660 grizzly?

This is caused by the needle and seat not closing off the flow of fuel. The gas gets into the cylinder, fills it up, and when you turn the engine over it compresses the gas. This forces the gas to work its way around the end gaps in the rings and into the crankcase (and oil).


What is the oil to gas ratio for 4 cycle engine?

A four cycle engine does not use a gas/oil mixture. The oil is in the crankcase and the gas goes in the gas tank. If you put oil in the gas on a 4 cycle engine it will run poorly and smoke a lot.


Why is there gasoline in Crankcase on 1981 Goldwing gl 1100?

The only way gas would be able to get into the crankcase is when the engine is off, gas is leaking down thru the carb's and passing thru the rings into the oil. Does the engine run well ? Is there always gas in the oil, or did you have trouble starting the engine and flooded it. If it was flooded once, that would do it. Change oil and filter.


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What Is Positive Crankcase Ventilation?

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Why does oil smell like gas but compression is good?

Not knowing what vehicle and engine you have you may have a faulty fuel pump leaking gasoline into the engine crankcase.