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ASK THE MXPERTS: CAN A HONDA CRF450 ACTUALLY GAIN ENGINE OIL WHILE BEING RIDDEN?

February 11, 2011
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Dear MXA,
      I have the strangest problem and nobody can tell me how it is happening. When I check the engine oil in my 2006 CRF450 before I ride, it is perfect. When I come back from riding it is higher. I am actually gaining oil while riding. How can this be?

      You have a blown counterbalancer seal. When the counter balancer seal goes out, oil from the transmission is drawn into the top-end. We’re willing to bet that as your engine oil quantity is increasing, your transmission oil level is going down. Honda is the only four-stroke that can have this problem, since Yamaha, Kawasaki, Suzuki and KTM use shared oil for the tranny and top-end.

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