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TTR-90 - oil in air box

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My son's bike smoked a bit last weekend after he crashed so I decided to investigate why. His bike has been bullet proof so thought there was something weird going on here.

Pulled air cover off and discovered the air filter on the left side was soaked in oil with what I guess, 1/4 cup of oil oozing out. The air box has a dividor so it kept the majority of the oil out of the carb.

I am going to assume that the engine oil vent spewed some oil in his crash and made its way all the way to the airbox?

Any other ideas? Cleaned everything last night and waiting for the filter to dry before buttoning the bike back together.


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