Fresh Laukaitis built Yamaha KT100 with Horstman HDC 5B 2 disc clutch, and 4 hole can.  Piston size is 75.  Also includes Walbro Wb3 carburetor.  This engine has a fresh piston and is just broken in.  Clutch is in good condition.  Ready to go, just add engine mount and kart.

Shipping: $30 in the US lower 48 States.