WHAT DOES GO-KART JB MEAN?

DURABLE: This bike engine kit is air-cooled to maintain the warmth out whilst managing, prolonging the lifetime of the engine【Incorporates】This high performance 125cc engine motor comes with: wiring+ carby+airfilter+ chain circumstance + gasket as the thing is in the pictureEASY TO ASSEMBLE: Notes: The kit wants simple components competencies &