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old man 53

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  1. 1986 Aprilia TX 311 m

    old man 53 replied to old man 53's topic in Aprilia
    Yes, I think that's what it says, nob to raise and lower compression, How should I use it. thanks Mark

  2. 1986 Aprilia TX 311 m

    old man 53 posted a topic in Aprilia
    Hi I am new to this, Last time I rode a trails bike was 1972, I found a nice old Aprilia 311 in good shape. Just a few questions to start, What fuel mix should I run in the bike? Is there anyplace in the Us that has any parts? I started it on a 50 to 1 mix seemed to run ritch, but everything seemed fine. There is also a engine compression adjustment device on the front of the engine, I have never seen one? Thanks for the help, Mark

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