I have a Kart for sale. It is a race kart that was used for dirt oval track. I have a new crank and rod installed last year. It has a 5 hp Briggs engine bored .010 over. The engine runs good. I would estimate the Kart will go 40 mph with a 250# rider. I do have electronics that come with the kart that tell cyl.head temp/rpm and does have MPH capability, but new sensors are needed. (the computer is about $300 by it self) New seat struts are needed, they are about $20
I will try to gets pics up tonight.
$300 OBO