pk80

  1. Will'smotobikes19

    Can I use a big bore piston/cylinder on a stock crank?

    I weighed both the stock piston with the piston pin and rings and the big bore windowed piston and they are both 3.7 oz. My question is can I use the big bore cylinder and piston without using the crank that I bought. The crank needs trued by a machine shop since I was a noob at engine building...
  2. Y

    Hello do you think this is a good deal??

    https://www.ebay.com/i/301650176773?chn=ps&dispItem=1&ul_ref=http%253A%252F%252Frover.ebay.com%252Frover%252F1%252F711-117182-37290-0%252F2%253Fmpre%253Dhttps%25253A%25252F%25252Fwww.ebay.com%25252Fp%25252FBlack-80cc-66-CC-2-Stroke-Gas-Engine-Motor-for-Motorized-Fit-26-28-Bicycle%25252F1573443765...
  3. Anthony 4k

    Pk80?

    What do you guys think of the pk80 I'm thinking about getting it next.

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