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  1. #1

    Join Date
    Jul 2012
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    need engine help

    Had knocking sound in the 1050 so I pulled the motor. Tore it apart and found a broken rod i the front cylinder. I had just rebuilt the carbs (with keihin kits) she ran great till the knocking started. When I got the motor apart the front cylinder seemed dry, no oil, very dry compared to the other two cylinders. What can cause the lack of oil in one cylinder?


  2. #2
    Banned User
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    I had a rod bearing fail, and when I took it apart, it seemed to lack oil. Im pretty sure the apparent lack of oil is from the failure, not an oil delivery problem. What does the piston look like? You can check the check valve on the carb where the oil line connects to make sure its not stuck.

  3. #3

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    Jul 2012
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    Ft Mill SC
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    It has been switched to pre mix

  4. #4
    BlueFishCrisis's Avatar
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    Medina, Ohio, United States
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    Quote Originally Posted by beach View Post
    It has been switched to pre mix
    In that case, lack of fuel will cause lack of oil.....

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