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Rodneya

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Posts posted by Rodneya

  1. Try take some more pics, but from a bit further away so that the camera can focus properly. Or see if your camera has a macro setting for closeups. (There is sometimes a flower on the setting button for this.)

     

    It a bit hard to see what is going on up at the top of the intake.

  2. Yup that is detonation. Causes: lean condition, too much timing, to low of octane fuel and or excessive engine heat (beyond normal).

     

    did someone forget to rejet for the 4mm?

     

     

    That is not from detonation, but preignition probably caused by an air leak. What does the other side piston and plug look like?

  3. What you need to do is check your compression ratio, im runnin 19cc domes with .44 squish 180psi, and 10.2:1 compression. Think about it.... Stock banshee is 8.2-8.5:1 and requires 90+ oct. I would run 100 or more. Im running 110 because idk where to get 100 at the moment.

     

    My 2 cents spent....

     

    A stock Banshee is 6.5:1 according to Yamaha, and will run on regular 87 with no problems.

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