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  1. C

    gas octane

    I have a 1974 lark 50, my owner's manual says to run a minimum octane rating of 94 but after reading many posts on iboats everyone seems to recomend 87.<br />Should I continue to run premium or is 87 ok.
  2. C

    1974 lark 50 tachometer

    I just installed a new tach on my 1974 lark 50 <br />when i turn the key on the needle moves to 0 and when i start to crank the motor the needle moves to about 800 rpms but as soon as motor fires the tach jumps and floats between 2000 and 3000 rpm,but the motor is clearly at idle<br />When i...
  3. C

    1974 evinrude lark 50 (poles)

    i am trying to install a tach on my old evinrude does anyone know how many poles it is, the back of ther tach reads 6 8 10 12
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