Tvs Motor Company — My moped xl 100 heavy duty name but not run the single duty

TVs xl 100 heavy duty but very poorer duty this bike is not run the properly one year. But creates a problem. And change new engine but not running. Facing me a problem by problem. Every day problem. Every week change the new any parts and but not. Running bhy this me this company problem or service center problem but I'm giving the money every time in center. But not clear bike problem.